255429151552640 has 128 divisors (see below), whose sum is σ = 666869338437120. Its totient is φ = 92983959613440.

The previous prime is 255429151552469. The next prime is 255429151552651. The reversal of 255429151552640 is 46255151924552.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215610824 + ... + 216792263.

It is an arithmetic number, because the mean of its divisors is an integer number (5209916706540).

Almost surely, 2^{255429151552640} is an apocalyptic number.

255429151552640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255429151552640 is an abundant number, since it is smaller than the sum of its proper divisors (411440186884480).

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

255429151552640 is a wasteful number, since it uses less digits than its factorization.

255429151552640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432403190 (or 432403178 counting only the distinct ones).

The product of its (nonzero) digits is 21600000, while the sum is 56.

The spelling of 255429151552640 in words is "two hundred fifty-five trillion, four hundred twenty-nine billion, one hundred fifty-one million, five hundred fifty-two thousand, six hundred forty".