256207161332 has 24 divisors (see below), whose sum is σ = 451662321600. Its totient is φ = 127161086976.

The previous prime is 256207161323. The next prime is 256207161389. The reversal of 256207161332 is 233161702652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3679028 + ... + 3748020.

It is an arithmetic number, because the mean of its divisors is an integer number (18819263400).

Almost surely, 2^256207161332 is an apocalyptic number.

It is an amenable number.

256207161332 is a deficient number, since it is larger than the sum of its proper divisors (195455160268).

256207161332 is a wasteful number, since it uses less digits than its factorization.

256207161332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75815 (or 75813 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

Adding to 256207161332 its reverse (233161702652), we get a palindrome (489368863984).

The spelling of 256207161332 in words is "two hundred fifty-six billion, two hundred seven million, one hundred sixty-one thousand, three hundred thirty-two".