20344156662562 has 16 divisors (see below), whose sum is σ = 30639913611552. Its totient is φ = 10130931028800.

The previous prime is 20344156662547. The next prime is 20344156662611. The reversal of 20344156662562 is 26526665144302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19209648 + ... + 20241019.

It is an arithmetic number, because the mean of its divisors is an integer number (1914994600722).

Almost surely, 2^{20344156662562} is an apocalyptic number.

20344156662562 is a deficient number, since it is larger than the sum of its proper divisors (10295756948990).

20344156662562 is a wasteful number, since it uses less digits than its factorization.

20344156662562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39451713.

The product of its (nonzero) digits is 12441600, while the sum is 52.

The spelling of 20344156662562 in words is "twenty trillion, three hundred forty-four billion, one hundred fifty-six million, six hundred sixty-two thousand, five hundred sixty-two".