256622402323332 has 18 divisors (see below), whose sum is σ = 648684405872958. Its totient is φ = 85540800774432.

The previous prime is 256622402323291. The next prime is 256622402323349. The reversal of 256622402323332 is 233323204226652.

256622402323332 is a `hidden beast` number, since 2 + 5 + 6 + 6 + 2 + 2 + 402 + 3 + 233 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 159259503477636 + 97362898845696 = 12619806^2 + 9867264^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3564200032233 + ... + 3564200032304.

Almost surely, 2^{256622402323332} is an apocalyptic number.

It is an amenable number.

256622402323332 is an abundant number, since it is smaller than the sum of its proper divisors (392062003549626).

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

256622402323332 is a wasteful number, since it uses less digits than its factorization.

256622402323332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7128400064547 (or 7128400064542 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 45.

Adding to 256622402323332 its reverse (233323204226652), we get a palindrome (489945606549984).

The spelling of 256622402323332 in words is "two hundred fifty-six trillion, six hundred twenty-two billion, four hundred two million, three hundred twenty-three thousand, three hundred thirty-two".