99157023345380 has 576 divisors, whose sum is σ = 311238306247680. Its totient is φ = 25683098664960.

The previous prime is 99157023345371. The next prime is 99157023345421. The reversal of 99157023345380 is 8354332075199.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 85530236 + ... + 86681804.

It is an arithmetic number, because the mean of its divisors is an integer number (540344281680).

Almost surely, 2^{99157023345380} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99157023345380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155619153123840).

99157023345380 is an abundant number, since it is smaller than the sum of its proper divisors (212081282902300).

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

99157023345380 is a wasteful number, since it uses less digits than its factorization.

99157023345380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151660 (or 1151647 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 59.

The spelling of 99157023345380 in words is "ninety-nine trillion, one hundred fifty-seven billion, twenty-three million, three hundred forty-five thousand, three hundred eighty".