99105140961 has 12 divisors (see below), whose sum is σ = 147769672960. Its totient is φ = 63938800440.

The previous prime is 99105140957. The next prime is 99105140989. The reversal of 99105140961 is 16904150199.

It is not a de Polignac number, because 99105140961 - 2² = 99105140957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99105140161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177607501 + ... + 177608058.

Almost surely, 2^99105140961 is an apocalyptic number.

It is an amenable number.

99105140961 is a deficient number, since it is larger than the sum of its proper divisors (48664531999).

99105140961 is a wasteful number, since it uses less digits than its factorization.

99105140961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355215596 (or 355215593 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The spelling of 99105140961 in words is "ninety-nine billion, one hundred five million, one hundred forty thousand, nine hundred sixty-one".