990599059901 has 8 divisors (see below), whose sum is σ = 1080715142304. Its totient is φ = 900493247920.

The previous prime is 990599059883. The next prime is 990599059907. The reversal of 990599059901 is 109950995099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 990599059901 - 2³⁸ = 715721152957 is a prime.

It is a super-2 number, since 2×990599059901² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990599059907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2365235 + ... + 2752368.

It is an arithmetic number, because the mean of its divisors is an integer number (135089392788).

Almost surely, 2^990599059901 is an apocalyptic number.

It is an amenable number.

990599059901 is a deficient number, since it is larger than the sum of its proper divisors (90116082403).

990599059901 is a wasteful number, since it uses less digits than its factorization.

990599059901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135211.

The product of its (nonzero) digits is 13286025, while the sum is 65.

The spelling of 990599059901 in words is "nine hundred ninety billion, five hundred ninety-nine million, fifty-nine thousand, nine hundred one".