123582164831840 has 384 divisors, whose sum is σ = 352379034806400. Its totient is φ = 40354298265600.

The previous prime is 123582164831833. The next prime is 123582164831863. The reversal of 123582164831840 is 48138461285321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 327201182 + ... + 327578658.

It is an arithmetic number, because the mean of its divisors is an integer number (917653736475).

Almost surely, 2^{123582164831840} is an apocalyptic number.

123582164831840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123582164831840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176189517403200).

123582164831840 is an abundant number, since it is smaller than the sum of its proper divisors (228796869974560).

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

123582164831840 is a wasteful number, since it uses less digits than its factorization.

123582164831840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377906 (or 377898 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 56.

The spelling of 123582164831840 in words is "one hundred twenty-three trillion, five hundred eighty-two billion, one hundred sixty-four million, eight hundred thirty-one thousand, eight hundred forty".