255704732064 has 144 divisors (see below), whose sum is σ = 778418484480. Its totient is φ = 82485319680.

The previous prime is 255704732051. The next prime is 255704732069. The reversal of 255704732064 is 460237407552.

255704732064 is a `hidden beast` number, since 2 + 5 + 570 + 4 + 73 + 2 + 0 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (255704732069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289329 + ... + 771440.

It is an arithmetic number, because the mean of its divisors is an integer number (5405683920).

Almost surely, 2^255704732064 is an apocalyptic number.

255704732064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

255704732064 is an abundant number, since it is smaller than the sum of its proper divisors (522713752416).

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

255704732064 is a wasteful number, since it uses less digits than its factorization.

255704732064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060825 (or 1060805 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 45.

The spelling of 255704732064 in words is "two hundred fifty-five billion, seven hundred four million, seven hundred thirty-two thousand, sixty-four".