99556981910 has 16 divisors (see below), whose sum is σ = 179946150912. Its totient is φ = 39657552000.

The previous prime is 99556981883. The next prime is 99556981949. The reversal of 99556981910 is 1918965599.

It is a congruent number.

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, 20652566 + ... + 20657385.

It is an arithmetic number, because the mean of its divisors is an integer number (11246634432).

Almost surely, 2^99556981910 is an apocalyptic number.

99556981910 is a deficient number, since it is larger than the sum of its proper divisors (80389169002).

99556981910 is a wasteful number, since it uses less digits than its factorization.

99556981910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41310199.

The product of its (nonzero) digits is 7873200, while the sum is 62.

The spelling of 99556981910 in words is "ninety-nine billion, five hundred fifty-six million, nine hundred eighty-one thousand, nine hundred ten".