99139338496 has 81 divisors (see below), whose sum is σ = 217638662493. Its totient is φ = 45038146560.

The previous prime is 99139338479. The next prime is 99139338503. The reversal of 99139338496 is 69483393199.

The square root of 99139338496 is 314864.

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

It can be written as a sum of positive squares in only one way, i.e., 93675172096 + 5464166400 = 306064^2 + 73920^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 55415170 + ... + 55416958.

Almost surely, 2^99139338496 is an apocalyptic number.

99139338496 is the 314864-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99139338496

99139338496 is an abundant number, since it is smaller than the sum of its proper divisors (118499323997).

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

99139338496 is an frugal number, since it uses more digits than its factorization.

99139338496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3616 (or 1802 counting only the distinct ones).

The product of its digits is 34012224, while the sum is 64.

Multiplying 99139338496 by its sum of digits (64), we get a square (6344917663744 = 2518912²).

99139338496 divided by its sum of digits (64) gives a square (1549052164 = 39358²).

The spelling of 99139338496 in words is "ninety-nine billion, one hundred thirty-nine million, three hundred thirty-eight thousand, four hundred ninety-six".