20013656762671 has 32 divisors (see below), whose sum is σ = 23580140048640. Its totient is φ = 16746432134400.

The previous prime is 20013656762653. The next prime is 20013656762857. The reversal of 20013656762671 is 17626765631002.

It is a cyclic number.

It is not a de Polignac number, because 20013656762671 - 2¹³ = 20013656754479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013656762611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138600516 + ... + 138744838.

It is an arithmetic number, because the mean of its divisors is an integer number (736879376520).

Almost surely, 2^{20013656762671} is an apocalyptic number.

20013656762671 is a deficient number, since it is larger than the sum of its proper divisors (3566483285969).

20013656762671 is a wasteful number, since it uses less digits than its factorization.

20013656762671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147127.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 20013656762671 in words is "twenty trillion, thirteen billion, six hundred fifty-six million, seven hundred sixty-two thousand, six hundred seventy-one".