256622142535 has 16 divisors (see below), whose sum is σ = 337533869952. Its totient is φ = 185749754400.

The previous prime is 256622142521. The next prime is 256622142613. The reversal of 256622142535 is 535241226652.

It is not a de Polignac number, because 256622142535 - 2⁵ = 256622142503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256622142491 and 256622142500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11044929 + ... + 11068138.

It is an arithmetic number, because the mean of its divisors is an integer number (21095866872).

Almost surely, 2^256622142535 is an apocalyptic number.

256622142535 is a deficient number, since it is larger than the sum of its proper divisors (80911727417).

256622142535 is a wasteful number, since it uses less digits than its factorization.

256622142535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22113294.

The product of its digits is 864000, while the sum is 43.

The spelling of 256622142535 in words is "two hundred fifty-six billion, six hundred twenty-two million, one hundred forty-two thousand, five hundred thirty-five".