255304154605440 has 64 divisors (see below), whose sum is σ = 813781992810960. Its totient is φ = 68081107894272.

The previous prime is 255304154605429. The next prime is 255304154605463. The reversal of 255304154605440 is 44506451403552.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×255304154605440² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 255304154605440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66485455009 + ... + 66485458848.

Almost surely, 2^{255304154605440} is an apocalyptic number.

255304154605440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255304154605440 is an abundant number, since it is smaller than the sum of its proper divisors (558477838205520).

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

255304154605440 is a wasteful number, since it uses less digits than its factorization.

255304154605440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132970913879 (or 132970913867 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 48.

The spelling of 255304154605440 in words is "two hundred fifty-five trillion, three hundred four billion, one hundred fifty-four million, six hundred five thousand, four hundred forty".