255397922482464 has 72 divisors (see below), whose sum is σ = 726335358528780. Its totient is φ = 85127071131648.

The previous prime is 255397922482463. The next prime is 255397922482513. The reversal of 255397922482464 is 464284229793552.

255397922482464 is a `hidden beast` number, since 2 + 5 + 5 + 39 + 7 + 92 + 2 + 48 + 2 + 464 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 242010665982864 + 13387256499600 = 15556692^2 + 3658860^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×255397922482464² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 255397922482392 and 255397922482401.

It is not an unprimeable number, because it can be changed into a prime (255397922482463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24597957 + ... + 33404420.

Almost surely, 2^{255397922482464} is an apocalyptic number.

255397922482464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

255397922482464 is an abundant number, since it is smaller than the sum of its proper divisors (470937436046316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255397922482464 is a wasteful number, since it uses less digits than its factorization.

255397922482464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58017682 (or 58017671 counting only the distinct ones).

The product of its digits is 2090188800, while the sum is 72.

The spelling of 255397922482464 in words is "two hundred fifty-five trillion, three hundred ninety-seven billion, nine hundred twenty-two million, four hundred eighty-two thousand, four hundred sixty-four".