256214211115 has 8 divisors (see below), whose sum is σ = 307620692640. Its totient is φ = 204862276032.

The previous prime is 256214211103. The next prime is 256214211157. The reversal of 256214211115 is 511112412652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 256214211115 - 2²³ = 256205822507 is a prime.

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, 13626274 + ... + 13645063.

It is an arithmetic number, because the mean of its divisors is an integer number (38452586580).

Almost surely, 2^256214211115 is an apocalyptic number.

256214211115 is a deficient number, since it is larger than the sum of its proper divisors (51406481525).

256214211115 is a wasteful number, since it uses less digits than its factorization.

256214211115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27273221.

The product of its digits is 4800, while the sum is 31.

Adding to 256214211115 its reverse (511112412652), we get a palindrome (767326623767).

The spelling of 256214211115 in words is "two hundred fifty-six billion, two hundred fourteen million, two hundred eleven thousand, one hundred fifteen".