138790522116 has 63 divisors (see below), whose sum is σ = 364211325751. Its totient is φ = 46256801544.

The previous prime is 138790522111. The next prime is 138790522133. The reversal of 138790522116 is 611225097831.

The square root of 138790522116 is 372546.

It is a perfect power (a square), and thus also a powerful number.

138790522116 is a `hidden beast` number, since 1 + 3 + 8 + 7 + 9 + 0 + 522 + 116 = 666.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138790522111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 20114035 + ... + 20120933.

Almost surely, 2^138790522116 is an apocalyptic number.

138790522116 is the 372546-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138790522116

138790522116 is an abundant number, since it is smaller than the sum of its proper divisors (225420803635).

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

138790522116 is an frugal number, since it uses more digits than its factorization.

138790522116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13820 (or 6904 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 138790522116 in words is "one hundred thirty-eight billion, seven hundred ninety million, five hundred twenty-two thousand, one hundred sixteen".