164279300638 has 16 divisors (see below), whose sum is σ = 251371356480. Its totient is φ = 80492589216.

The previous prime is 164279300621. The next prime is 164279300681. The reversal of 164279300638 is 836003972461.

It is a super-2 number, since 2×164279300638² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164279300591 and 164279300600.

It is a congruent number.

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, 846870 + ... + 1022617.

It is an arithmetic number, because the mean of its divisors is an integer number (15710709780).

Almost surely, 2^164279300638 is an apocalyptic number.

164279300638 is a deficient number, since it is larger than the sum of its proper divisors (87092055842).

164279300638 is a wasteful number, since it uses less digits than its factorization.

164279300638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870371.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 164279300638 in words is "one hundred sixty-four billion, two hundred seventy-nine million, three hundred thousand, six hundred thirty-eight".