99960009501 has 24 divisors (see below), whose sum is σ = 147551881120. Its totient is φ = 60145953120.

The previous prime is 99960009467. The next prime is 99960009517. The reversal of 99960009501 is 10590006999.

It is a happy number.

It is not a de Polignac number, because 99960009501 - 2³⁰ = 98886267677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99960009521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 940090 + ... + 1041003.

Almost surely, 2^99960009501 is an apocalyptic number.

It is an amenable number.

99960009501 is a deficient number, since it is larger than the sum of its proper divisors (47591871619).

99960009501 is a wasteful number, since it uses less digits than its factorization.

99960009501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981257 (or 1981246 counting only the distinct ones).

The product of its (nonzero) digits is 196830, while the sum is 48.

The spelling of 99960009501 in words is "ninety-nine billion, nine hundred sixty million, nine thousand, five hundred one".