10212440645256 has 64 divisors (see below), whose sum is σ = 25825792852800. Its totient is φ = 3364877902848.

The previous prime is 10212440645233. The next prime is 10212440645261. The reversal of 10212440645256 is 65254604421201.

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, 6340876 + ... + 7786628.

It is an arithmetic number, because the mean of its divisors is an integer number (403528013325).

Almost surely, 2^{10212440645256} is an apocalyptic number.

It is an amenable number.

10212440645256 is an abundant number, since it is smaller than the sum of its proper divisors (15613352207544).

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

10212440645256 is a wasteful number, since it uses less digits than its factorization.

10212440645256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449158 (or 1449154 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 10212440645256 in words is "ten trillion, two hundred twelve billion, four hundred forty million, six hundred forty-five thousand, two hundred fifty-six".