99157263488 has 32 divisors (see below), whose sum is σ = 197554056960. Its totient is φ = 49575068928.

The previous prime is 99157263467. The next prime is 99157263521. The reversal of 99157263488 is 88436275199.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×99157263488² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99157263488.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3504245 + ... + 3532427.

It is an arithmetic number, because the mean of its divisors is an integer number (6173564280).

Almost surely, 2^99157263488 is an apocalyptic number.

It is an amenable number.

99157263488 is a deficient number, since it is larger than the sum of its proper divisors (98396793472).

99157263488 is a wasteful number, since it uses less digits than its factorization.

99157263488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55684 (or 55672 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 62.

The spelling of 99157263488 in words is "ninety-nine billion, one hundred fifty-seven million, two hundred sixty-three thousand, four hundred eighty-eight".