99163031144 has 16 divisors (see below), whose sum is σ = 185938347300. Its totient is φ = 49579471872.

The previous prime is 99163031141. The next prime is 99163031153. The reversal of 99163031144 is 44113036199.

It can be written as a sum of positive squares in 2 ways, for example, as 99060008644 + 103022500 = 314738^2 + 10150^2 .

It is not an unprimeable number, because it can be changed into a prime (99163031141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38399 + ... + 446990.

Almost surely, 2^99163031144 is an apocalyptic number.

It is an amenable number.

99163031144 is a deficient number, since it is larger than the sum of its proper divisors (86775316156).

99163031144 is a wasteful number, since it uses less digits than its factorization.

99163031144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510932 (or 510928 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 99163031144 in words is "ninety-nine billion, one hundred sixty-three million, thirty-one thousand, one hundred forty-four".