256313160215 has 64 divisors (see below), whose sum is σ = 367392706560. Its totient is φ = 167948605440.

The previous prime is 256313160203. The next prime is 256313160217. The reversal of 256313160215 is 512061313652.

It is not a de Polignac number, because 256313160215 - 2⁶ = 256313160151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256313160217) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 110908910 + ... + 110911220.

It is an arithmetic number, because the mean of its divisors is an integer number (5740511040).

Almost surely, 2^256313160215 is an apocalyptic number.

256313160215 is a deficient number, since it is larger than the sum of its proper divisors (111079546345).

256313160215 is a wasteful number, since it uses less digits than its factorization.

256313160215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432.

The product of its (nonzero) digits is 32400, while the sum is 35.

Adding to 256313160215 its reverse (512061313652), we get a palindrome (768374473867).

The spelling of 256313160215 in words is "two hundred fifty-six billion, three hundred thirteen million, one hundred sixty thousand, two hundred fifteen".