256541153152 has 32 divisors (see below), whose sum is σ = 511101218520. Its totient is φ = 128264769024.

The previous prime is 256541153137. The next prime is 256541153237. The reversal of 256541153152 is 251351145652.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4837243 + ... + 4889989.

Almost surely, 2^256541153152 is an apocalyptic number.

It is an amenable number.

256541153152 is a deficient number, since it is larger than the sum of its proper divisors (254560065368).

256541153152 is an equidigital number, since it uses as much as digits as its factorization.

256541153152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90758 (or 90746 counting only the distinct ones).

The product of its digits is 180000, while the sum is 40.

The spelling of 256541153152 in words is "two hundred fifty-six billion, five hundred forty-one million, one hundred fifty-three thousand, one hundred fifty-two".