99985297264 has 40 divisors (see below), whose sum is σ = 195278751360. Its totient is φ = 49591089600.

The previous prime is 99985297231. The next prime is 99985297271. The reversal of 99985297264 is 46279258999.

It is a junction number, because it is equal to n+sod(n) for n = 99985297193 and 99985297202.

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, 6152029 + ... + 6168259.

It is an arithmetic number, because the mean of its divisors is an integer number (4881968784).

Almost surely, 2^99985297264 is an apocalyptic number.

It is an amenable number.

99985297264 is a deficient number, since it is larger than the sum of its proper divisors (95293454096).

99985297264 is a wasteful number, since it uses less digits than its factorization.

99985297264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19309 (or 19303 counting only the distinct ones).

The product of its digits is 176359680, while the sum is 70.

The spelling of 99985297264 in words is "ninety-nine billion, nine hundred eighty-five million, two hundred ninety-seven thousand, two hundred sixty-four".