99633433537 has 64 divisors (see below), whose sum is σ = 122852966400. Its totient is φ = 79758432000.

The previous prime is 99633433481. The next prime is 99633433547. The reversal of 99633433537 is 73533433699.

It is a cyclic number.

It is not a de Polignac number, because 99633433537 - 2⁷ = 99633433409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99633433547) 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 63 ways as a sum of consecutive naturals, for example, 18935487 + ... + 18940747.

It is an arithmetic number, because the mean of its divisors is an integer number (1919577600).

Almost surely, 2^99633433537 is an apocalyptic number.

It is an amenable number.

99633433537 is a deficient number, since it is larger than the sum of its proper divisors (23219532863).

99633433537 is a wasteful number, since it uses less digits than its factorization.

99633433537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5438.

The product of its digits is 16533720, while the sum is 55.

The spelling of 99633433537 in words is "ninety-nine billion, six hundred thirty-three million, four hundred thirty-three thousand, five hundred thirty-seven".