256622324162602 has 4 divisors (see below), whose sum is σ = 384933486243906. Its totient is φ = 128311162081300.

The previous prime is 256622324162573. The next prime is 256622324162657. The reversal of 256622324162602 is 206261423226652.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 250086739285161 + 6535584877441 = 15814131^2 + 2556479^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64155581040649 + ... + 64155581040652.

Almost surely, 2^{256622324162602} is an apocalyptic number.

256622324162602 is a deficient number, since it is larger than the sum of its proper divisors (128311162081304).

256622324162602 is a wasteful number, since it uses less digits than its factorization.

256622324162602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128311162081303.

The product of its (nonzero) digits is 4976640, while the sum is 49.

The spelling of 256622324162602 in words is "two hundred fifty-six trillion, six hundred twenty-two billion, three hundred twenty-four million, one hundred sixty-two thousand, six hundred two".