20046656667 has 32 divisors (see below), whose sum is σ = 29515968000. Its totient is φ = 12052212480.

The previous prime is 20046656639. The next prime is 20046656681. The reversal of 20046656667 is 76665664002.

It is not a de Polignac number, because 20046656667 - 2²³ = 20038268059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20046656167) 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, 31959 + ... + 202767.

It is an arithmetic number, because the mean of its divisors is an integer number (922374000).

Almost surely, 2^20046656667 is an apocalyptic number.

20046656667 is a deficient number, since it is larger than the sum of its proper divisors (9469311333).

20046656667 is a wasteful number, since it uses less digits than its factorization.

20046656667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170931.

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 20046656667 in words is "twenty billion, forty-six million, six hundred fifty-six thousand, six hundred sixty-seven".