255997314722 has 18 divisors (see below), whose sum is σ = 389557849179. Its totient is φ = 126170815540.

The previous prime is 255997314641. The next prime is 255997314767. The reversal of 255997314722 is 227413799552.

It can be written as a sum of positive squares in only one way, i.e., 127998657361 + 127998657361 = 357769^2 + 357769^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=357769.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 50800679 + ... + 50805717.

Almost surely, 2^255997314722 is an apocalyptic number.

255997314722 is a deficient number, since it is larger than the sum of its proper divisors (133560534457).

255997314722 is an frugal number, since it uses more digits than its factorization.

255997314722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10222 (or 5112 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 56.

The spelling of 255997314722 in words is "two hundred fifty-five billion, nine hundred ninety-seven million, three hundred fourteen thousand, seven hundred twenty-two".