99556433986 has 16 divisors (see below), whose sum is σ = 149875774848. Its totient is φ = 49598143600.

The previous prime is 99556433971. The next prime is 99556434013. The reversal of 99556433986 is 68933465599.

It is a super-2 number, since 2×99556433986² (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 7 ways as a sum of consecutive naturals, for example, 591621 + ... + 741031.

It is an arithmetic number, because the mean of its divisors is an integer number (9367235928).

Almost surely, 2^99556433986 is an apocalyptic number.

99556433986 is a deficient number, since it is larger than the sum of its proper divisors (50319340862).

99556433986 is a wasteful number, since it uses less digits than its factorization.

99556433986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150617.

The product of its digits is 188956800, while the sum is 67.

The spelling of 99556433986 in words is "ninety-nine billion, five hundred fifty-six million, four hundred thirty-three thousand, nine hundred eighty-six".