138922660800 has 1008 divisors, whose sum is σ = 619085376000. Its totient is φ = 28704153600.

The previous prime is 138922660769. The next prime is 138922660823. The reversal of 138922660800 is 8066229831.

138922660800 is a `hidden beast` number, since 1 + 38 + 9 + 2 + 2 + 6 + 608 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1008).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 386971021 + ... + 386971379.

It is an arithmetic number, because the mean of its divisors is an integer number (614172000).

Almost surely, 2^138922660800 is an apocalyptic number.

138922660800 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 138922660800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309542688000).

138922660800 is an abundant number, since it is smaller than the sum of its proper divisors (480162715200).

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

138922660800 is a wasteful number, since it uses less digits than its factorization.

138922660800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 138922660800 in words is "one hundred thirty-eight billion, nine hundred twenty-two million, six hundred sixty thousand, eight hundred".