99715442685 has 16 divisors (see below), whose sum is σ = 159554560320. Its totient is φ = 53178285440.

The previous prime is 99715442681. The next prime is 99715442693. The reversal of 99715442685 is 58624451799.

It is not a de Polignac number, because 99715442685 - 2² = 99715442681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99715442681) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 56530 + ... + 450140.

It is an arithmetic number, because the mean of its divisors is an integer number (9972160020).

Almost surely, 2^99715442685 is an apocalyptic number.

It is an amenable number.

99715442685 is a deficient number, since it is larger than the sum of its proper divisors (59839117635).

99715442685 is a wasteful number, since it uses less digits than its factorization.

99715442685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410508.

The product of its digits is 21772800, while the sum is 60.

The spelling of 99715442685 in words is "ninety-nine billion, seven hundred fifteen million, four hundred forty-two thousand, six hundred eighty-five".