2256999678660 has 96 divisors (see below), whose sum is σ = 6846952920192. Its totient is φ = 553289103360.

The previous prime is 2256999678613. The next prime is 2256999678667. The reversal of 2256999678660 is 668769996522.

It is not an unprimeable number, because it can be changed into a prime (2256999678667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25685731 + ... + 25773450.

It is an arithmetic number, because the mean of its divisors is an integer number (71322426252).

Almost surely, 2^{2256999678660} is an apocalyptic number.

2256999678660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2256999678660 is an abundant number, since it is smaller than the sum of its proper divisors (4589953241532).

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

2256999678660 is a wasteful number, since it uses less digits than its factorization.

2256999678660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51459253 (or 51459251 counting only the distinct ones).

The product of its (nonzero) digits is 1058158080, while the sum is 75.

The spelling of 2256999678660 in words is "two trillion, two hundred fifty-six billion, nine hundred ninety-nine million, six hundred seventy-eight thousand, six hundred sixty".