163138979310 has 32 divisors (see below), whose sum is σ = 391642780320. Its totient is φ = 43491591168.

The previous prime is 163138979281. The next prime is 163138979329. The reversal of 163138979310 is 13979831361.

It is a super-2 number, since 2×163138979310² (a number of 23 digits) contains 22 as substring.

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, 648955 + ... + 864534.

It is an arithmetic number, because the mean of its divisors is an integer number (12238836885).

Almost surely, 2^163138979310 is an apocalyptic number.

163138979310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163138979310 is an abundant number, since it is smaller than the sum of its proper divisors (228503801010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163138979310 is a wasteful number, since it uses less digits than its factorization.

163138979310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517092.

The product of its (nonzero) digits is 734832, while the sum is 51.

The spelling of 163138979310 in words is "one hundred sixty-three billion, one hundred thirty-eight million, nine hundred seventy-nine thousand, three hundred ten".