165123112600 has 48 divisors (see below), whose sum is σ = 384169072320. Its totient is φ = 66004886400.

The previous prime is 165123112559. The next prime is 165123112639. The reversal of 165123112600 is 6211321561.

165123112600 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22105 + ... + 575095.

It is an arithmetic number, because the mean of its divisors is an integer number (8003522340).

Almost surely, 2^165123112600 is an apocalyptic number.

165123112600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165123112600 is an abundant number, since it is smaller than the sum of its proper divisors (219045959720).

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

165123112600 is a wasteful number, since it uses less digits than its factorization.

165123112600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554500 (or 554491 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 165123112600 in words is "one hundred sixty-five billion, one hundred twenty-three million, one hundred twelve thousand, six hundred".