99451370680 has 16 divisors (see below), whose sum is σ = 223765584120. Its totient is φ = 39780548256.

The previous prime is 99451370677. The next prime is 99451370713. The reversal of 99451370680 is 8607315499.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243142094 + ... + 1243142173.

Almost surely, 2^99451370680 is an apocalyptic number.

It is an amenable number.

99451370680 is an abundant number, since it is smaller than the sum of its proper divisors (124314213440).

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

99451370680 is a wasteful number, since it uses less digits than its factorization.

99451370680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486284278 (or 2486284274 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 52.

It can be divided in two parts, 9945 and 1370680, that added together give a square (1380625 = 1175²).

The spelling of 99451370680 in words is "ninety-nine billion, four hundred fifty-one million, three hundred seventy thousand, six hundred eighty".