99670634559 has 12 divisors (see below), whose sum is σ = 144301191216. Its totient is φ = 66293629632.

The previous prime is 99670634533. The next prime is 99670634563. The reversal of 99670634559 is 95543607699.

99670634559 is a `hidden beast` number, since 9 + 9 + 6 + 70 + 6 + 3 + 4 + 559 = 666.

It is not a de Polignac number, because 99670634559 - 2⁷ = 99670634431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99670634496 and 99670634505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99670634059) 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, 12784227 + ... + 12792020.

It is an arithmetic number, because the mean of its divisors is an integer number (12025099268).

Almost surely, 2^99670634559 is an apocalyptic number.

99670634559 is a deficient number, since it is larger than the sum of its proper divisors (44630556657).

99670634559 is a wasteful number, since it uses less digits than its factorization.

99670634559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25576686 (or 25576683 counting only the distinct ones).

The product of its (nonzero) digits is 55112400, while the sum is 63.

The spelling of 99670634559 in words is "ninety-nine billion, six hundred seventy million, six hundred thirty-four thousand, five hundred fifty-nine".