256006416151 has 4 divisors (see below), whose sum is σ = 256092645600. Its totient is φ = 255920186704.

The previous prime is 256006416139. The next prime is 256006416187. The reversal of 256006416151 is 151614600652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256006416151 is a prime.

It is a super-2 number, since 2×256006416151² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 256006416151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256006416191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43110271 + ... + 43116208.

It is an arithmetic number, because the mean of its divisors is an integer number (64023161400).

Almost surely, 2^256006416151 is an apocalyptic number.

256006416151 is a deficient number, since it is larger than the sum of its proper divisors (86229449).

256006416151 is an equidigital number, since it uses as much as digits as its factorization.

256006416151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86229448.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 256006416151 in words is "two hundred fifty-six billion, six million, four hundred sixteen thousand, one hundred fifty-one".