256477670776662 has 16 divisors (see below), whose sum is σ = 514173762797232. Its totient is φ = 85289486718240.

The previous prime is 256477670776643. The next prime is 256477670776837. The reversal of 256477670776662 is 266677076774652.

It is a congruent number.

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, 50767549093 + ... + 50767554144.

It is an arithmetic number, because the mean of its divisors is an integer number (32135860174827).

Almost surely, 2^{256477670776662} is an apocalyptic number.

256477670776662 is an abundant number, since it is smaller than the sum of its proper divisors (257696092020570).

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

256477670776662 is a wasteful number, since it uses less digits than its factorization.

256477670776662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101535103663.

The product of its (nonzero) digits is 10455298560, while the sum is 78.

The spelling of 256477670776662 in words is "two hundred fifty-six trillion, four hundred seventy-seven billion, six hundred seventy million, seven hundred seventy-six thousand, six hundred sixty-two".