99400725120 has 128 divisors (see below), whose sum is σ = 320400360000. Its totient is φ = 26208985088.

The previous prime is 99400725101. The next prime is 99400725161. The reversal of 99400725120 is 2152700499.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119970 + ... + 461729.

Almost surely, 2^99400725120 is an apocalyptic number.

It is an amenable number.

99400725120 is an abundant number, since it is smaller than the sum of its proper divisors (220999634880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99400725120 is a wasteful number, since it uses less digits than its factorization.

99400725120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581810 (or 581798 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The spelling of 99400725120 in words is "ninety-nine billion, four hundred million, seven hundred twenty-five thousand, one hundred twenty".