256632060647133 has 16 divisors (see below), whose sum is σ = 380199253271040. Its totient is φ = 171086416890912.

The previous prime is 256632060647119. The next prime is 256632060647191. The reversal of 256632060647133 is 331746060236652.

256632060647133 is a `hidden beast` number, since 2 + 5 + 6 + 6 + 3 + 20 + 606 + 4 + 7 + 1 + 3 + 3 = 666.

It is not a de Polignac number, because 256632060647133 - 2³² = 256627765679837 is a prime.

It is a super-2 number, since 2×256632060647133² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 256632060647133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256632060647933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42197016 + ... + 47894177.

It is an arithmetic number, because the mean of its divisors is an integer number (23762453329440).

Almost surely, 2^{256632060647133} is an apocalyptic number.

It is an amenable number.

256632060647133 is a deficient number, since it is larger than the sum of its proper divisors (123567192623907).

256632060647133 is a wasteful number, since it uses less digits than its factorization.

256632060647133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90196705 (or 90196699 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 54.

The spelling of 256632060647133 in words is "two hundred fifty-six trillion, six hundred thirty-two billion, sixty million, six hundred forty-seven thousand, one hundred thirty-three".