99590591401 has 24 divisors (see below), whose sum is σ = 117807372000. Its totient is φ = 83932035264.

The previous prime is 99590591393. The next prime is 99590591407. The reversal of 99590591401 is 10419509599.

It is a happy number.

It is not a de Polignac number, because 99590591401 - 2³ = 99590591393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99590591407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 716830 + ... + 844408.

It is an arithmetic number, because the mean of its divisors is an integer number (4908640500).

Almost surely, 2^99590591401 is an apocalyptic number.

It is an amenable number.

99590591401 is a deficient number, since it is larger than the sum of its proper divisors (18216780599).

99590591401 is a wasteful number, since it uses less digits than its factorization.

99590591401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127861 (or 127854 counting only the distinct ones).

The product of its (nonzero) digits is 656100, while the sum is 52.

The spelling of 99590591401 in words is "ninety-nine billion, five hundred ninety million, five hundred ninety-one thousand, four hundred one".