256535141535652 has 36 divisors (see below), whose sum is σ = 549718160441520. Its totient is φ = 104157125133264.

The previous prime is 256535141535623. The next prime is 256535141535707.

256535141535652 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34443490038 + ... + 34443497485.

Almost surely, 2^{256535141535652} is an apocalyptic number.

It is an amenable number.

256535141535652 is an abundant number, since it is smaller than the sum of its proper divisors (293183018905868).

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

256535141535652 is a wasteful number, since it uses less digits than its factorization.

256535141535652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68886987560 (or 68886987551 counting only the distinct ones).

The product of its digits is 81000000, while the sum is 58.

Adding to 256535141535652 its product of digits (81000000), we get a palindrome (256535222535652).

Subtracting from 256535141535652 its product of digits (81000000), we obtain a palindrome (256535060535652).

The spelling of 256535141535652 in words is "two hundred fifty-six trillion, five hundred thirty-five billion, one hundred forty-one million, five hundred thirty-five thousand, six hundred fifty-two".