99605011285 has 48 divisors (see below), whose sum is σ = 137222769600. Its totient is φ = 69180314112.

The previous prime is 99605011271. The next prime is 99605011313. The reversal of 99605011285 is 58211050699.

99605011285 is a nontrivial binomial coefficient, being equal to C(446330, 2).

It is not a de Polignac number, because 99605011285 - 2²³ = 99596622677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2209329 + ... + 2253961.

It is an arithmetic number, because the mean of its divisors is an integer number (2858807700).

Almost surely, 2^99605011285 is an apocalyptic number.

99605011285 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

99605011285 is the 446329-th triangular number and also the 223165-th hexagonal number.

99605011285 is the 148777-th centered nonagonal number.

It is an amenable number.

99605011285 is a deficient number, since it is larger than the sum of its proper divisors (37617758315).

99605011285 is a wasteful number, since it uses less digits than its factorization.

99605011285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44822 (or 44809 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 46.

The spelling of 99605011285 in words is "ninety-nine billion, six hundred five million, eleven thousand, two hundred eighty-five".