99158179152400 has 135 divisors (see below), whose sum is σ = 246175507278759. Its totient is φ = 38381421408000.

The previous prime is 99158179152359. The next prime is 99158179152451. The reversal of 99158179152400 is 425197185199.

The square root of 99158179152400 is 9957820.

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

It can be written as a sum of positive squares in 4 ways, for example, as 53681822396944 + 45476356755456 = 7326788^2 + 6743616^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6173840370 + ... + 6173856430.

Almost surely, 2^{99158179152400} is an apocalyptic number.

99158179152400 is the 9957820-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99158179152400

99158179152400 is an abundant number, since it is smaller than the sum of its proper divisors (147017328126359).

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

99158179152400 is an frugal number, since it uses more digits than its factorization.

99158179152400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32202 (or 16099 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 61.

The spelling of 99158179152400 in words is "ninety-nine trillion, one hundred fifty-eight billion, one hundred seventy-nine million, one hundred fifty-two thousand, four hundred".