20260623164 has 24 divisors (see below), whose sum is σ = 35637166320. Its totient is φ = 10078689024.

The previous prime is 20260623127. The next prime is 20260623167. The reversal of 20260623164 is 46132606202.

It is a super-2 number, since 2×20260623164² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20260623164.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20260623167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725492 + ... + 752900.

It is an arithmetic number, because the mean of its divisors is an integer number (1484881930).

Almost surely, 2^20260623164 is an apocalyptic number.

It is an amenable number.

20260623164 is a deficient number, since it is larger than the sum of its proper divisors (15376543156).

20260623164 is a wasteful number, since it uses less digits than its factorization.

20260623164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28349 (or 28347 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 20260623164 in words is "twenty billion, two hundred sixty million, six hundred twenty-three thousand, one hundred sixty-four".