256622402000402 has 16 divisors (see below), whose sum is σ = 385074257223552. Its totient is φ = 128264323234320.

The previous prime is 256622402000383. The next prime is 256622402000551. The reversal of 256622402000402 is 204000204226652.

256622402000402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×256622402000402² (a number of 30 digits) contains 22 as substring.

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, 72130973 + ... + 75605039.

It is an arithmetic number, because the mean of its divisors is an integer number (24067141076472).

Almost surely, 2^{256622402000402} is an apocalyptic number.

256622402000402 is a deficient number, since it is larger than the sum of its proper divisors (128451855223150).

256622402000402 is a wasteful number, since it uses less digits than its factorization.

256622402000402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487553.

The product of its (nonzero) digits is 92160, while the sum is 35.

The spelling of 256622402000402 in words is "two hundred fifty-six trillion, six hundred twenty-two billion, four hundred two million, four hundred two", and thus it is an aban number.