123015928816 has 40 divisors (see below), whose sum is σ = 260033356800. Its totient is φ = 55911510720.

The previous prime is 123015928771. The next prime is 123015928843. The reversal of 123015928816 is 618829510321.

It is a congruent number.

It is an unprimeable number.

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, 2737215 + ... + 2781793.

It is an arithmetic number, because the mean of its divisors is an integer number (6500833920).

Almost surely, 2^123015928816 is an apocalyptic number.

123015928816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123015928816 is an abundant number, since it is smaller than the sum of its proper divisors (137017427984).

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

123015928816 is a wasteful number, since it uses less digits than its factorization.

123015928816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60277 (or 60271 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 123015928816 in words is "one hundred twenty-three billion, fifteen million, nine hundred twenty-eight thousand, eight hundred sixteen".