20172467164 has 48 divisors (see below), whose sum is σ = 37446948000. Its totient is φ = 9493376256.

The previous prime is 20172467137. The next prime is 20172467173. The reversal of 20172467164 is 46176427102.

It is a congruent number.

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, 954787 + ... + 975685.

It is an arithmetic number, because the mean of its divisors is an integer number (780144750).

Almost surely, 2^20172467164 is an apocalyptic number.

It is an amenable number.

20172467164 is a deficient number, since it is larger than the sum of its proper divisors (17274480836).

20172467164 is a wasteful number, since it uses less digits than its factorization.

20172467164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21142 (or 21140 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 20172467164 in words is "twenty billion, one hundred seventy-two million, four hundred sixty-seven thousand, one hundred sixty-four".