123165553046250 has 640 divisors, whose sum is σ = 384434485585920. Its totient is φ = 25852176000000.

The previous prime is 123165553046189. The next prime is 123165553046267. The reversal of 123165553046250 is 52640355561321.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 123165553046250.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 1029003907 + ... + 1029123593.

It is an arithmetic number, because the mean of its divisors is an integer number (600678883728).

Almost surely, 2^{123165553046250} is an apocalyptic number.

123165553046250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123165553046250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192217242792960).

123165553046250 is an abundant number, since it is smaller than the sum of its proper divisors (261268932539670).

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

123165553046250 is a wasteful number, since it uses less digits than its factorization.

123165553046250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119856 (or 119841 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 48.

The spelling of 123165553046250 in words is "one hundred twenty-three trillion, one hundred sixty-five billion, five hundred fifty-three million, forty-six thousand, two hundred fifty".