99690558986 has 8 divisors (see below), whose sum is σ = 149593828320. Its totient is φ = 49825949548.

The previous prime is 99690558971. The next prime is 99690558991. The reversal of 99690558986 is 68985509699.

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

It is a super-2 number, since 2×99690558986² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9658526 + ... + 9668841.

It is an arithmetic number, because the mean of its divisors is an integer number (18699228540).

Almost surely, 2^99690558986 is an apocalyptic number.

99690558986 is a deficient number, since it is larger than the sum of its proper divisors (49903269334).

99690558986 is a wasteful number, since it uses less digits than its factorization.

99690558986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19329948.

The product of its (nonzero) digits is 377913600, while the sum is 74.

The spelling of 99690558986 in words is "ninety-nine billion, six hundred ninety million, five hundred fifty-eight thousand, nine hundred eighty-six".