99555614728 has 32 divisors (see below), whose sum is σ = 193124332800. Its totient is φ = 48056162112.

The previous prime is 99555614651. The next prime is 99555614887. The reversal of 99555614728 is 82741655599.

99555614728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×99555614728² (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, 2977801 + ... + 3011047.

It is an arithmetic number, because the mean of its divisors is an integer number (6035135400).

Almost surely, 2^99555614728 is an apocalyptic number.

It is an amenable number.

99555614728 is a deficient number, since it is larger than the sum of its proper divisors (93568718072).

99555614728 is a wasteful number, since it uses less digits than its factorization.

99555614728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46189 (or 46185 counting only the distinct ones).

The product of its digits is 27216000, while the sum is 61.

The spelling of 99555614728 in words is "ninety-nine billion, five hundred fifty-five million, six hundred fourteen thousand, seven hundred twenty-eight".