99725609315952 has 160 divisors (see below), whose sum is σ = 291729770242560. Its totient is φ = 32611476165120.

The previous prime is 99725609315939. The next prime is 99725609315987. The reversal of 99725609315952 is 25951390652799.

99725609315952 is a `hidden beast` number, since 9 + 9 + 7 + 2 + 5 + 609 + 3 + 1 + 5 + 9 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5711949 + ... + 15234092.

It is an arithmetic number, because the mean of its divisors is an integer number (1823311064016).

Almost surely, 2^{99725609315952} is an apocalyptic number.

It is an amenable number.

99725609315952 is an abundant number, since it is smaller than the sum of its proper divisors (192004160926608).

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

99725609315952 is a wasteful number, since it uses less digits than its factorization.

99725609315952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20946268 (or 20946256 counting only the distinct ones).

The product of its (nonzero) digits is 413343000, while the sum is 72.

The spelling of 99725609315952 in words is "ninety-nine trillion, seven hundred twenty-five billion, six hundred nine million, three hundred fifteen thousand, nine hundred fifty-two".