10122056656555 has 4 divisors (see below), whose sum is σ = 12146467987872. Its totient is φ = 8097645325240.

The previous prime is 10122056656549. The next prime is 10122056656561. The reversal of 10122056656555 is 55565665022101.

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

It is an interprime number because it is at equal distance from previous prime (10122056656549) and next prime (10122056656561).

It is a de Polignac number, because none of the positive numbers 2^k-10122056656555 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10122056656499 and 10122056656508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1012205665651 + ... + 1012205665660.

It is an arithmetic number, because the mean of its divisors is an integer number (3036616996968).

Almost surely, 2^{10122056656555} is an apocalyptic number.

10122056656555 is a deficient number, since it is larger than the sum of its proper divisors (2024411331317).

10122056656555 is an equidigital number, since it uses as much as digits as its factorization.

10122056656555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024411331316.

The product of its (nonzero) digits is 2700000, while the sum is 49.

The spelling of 10122056656555 in words is "ten trillion, one hundred twenty-two billion, fifty-six million, six hundred fifty-six thousand, five hundred fifty-five".