99638710336 has 189 divisors, whose sum is σ = 231964626621. Its totient is φ = 42424166400.

The previous prime is 99638710289. The next prime is 99638710337. The reversal of 99638710336 is 63301783699.

The square root of 99638710336 is 315656.

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., 77573390400 + 22065319936 = 278520^2 + 148544^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99638710337) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 472221271 + ... + 472221481.

Almost surely, 2^99638710336 is an apocalyptic number.

99638710336 is the 315656-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99638710336

99638710336 is an abundant number, since it is smaller than the sum of its proper divisors (132325916285).

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

99638710336 is a wasteful number, since it uses less digits than its factorization.

99638710336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 55.

The spelling of 99638710336 in words is "ninety-nine billion, six hundred thirty-eight million, seven hundred ten thousand, three hundred thirty-six".