256507766763150 has 96 divisors (see below), whose sum is σ = 746665388213760. Its totient is φ = 57045742715520.

The previous prime is 256507766763107. The next prime is 256507766763173. The reversal of 256507766763150 is 51367667705652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3301219410 + ... + 3301297109.

It is an arithmetic number, because the mean of its divisors is an integer number (7777764460560).

Almost surely, 2^{256507766763150} is an apocalyptic number.

256507766763150 is an abundant number, since it is smaller than the sum of its proper divisors (490157621450610).

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

256507766763150 is a wasteful number, since it uses less digits than its factorization.

256507766763150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6602516578 (or 6602516573 counting only the distinct ones).

The product of its (nonzero) digits is 333396000, while the sum is 66.

The spelling of 256507766763150 in words is "two hundred fifty-six trillion, five hundred seven billion, seven hundred sixty-six million, seven hundred sixty-three thousand, one hundred fifty".