99579825345 has 128 divisors (see below), whose sum is σ = 226506792960. Its totient is φ = 35953274880.

The previous prime is 99579825287. The next prime is 99579825419. The reversal of 99579825345 is 54352897599.

It is not a de Polignac number, because 99579825345 - 2⁶ = 99579825281 is a prime.

It is a super-2 number, since 2×99579825345² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 60196 + ... + 450314.

It is an arithmetic number, because the mean of its divisors is an integer number (1769584320).

Almost surely, 2^99579825345 is an apocalyptic number.

It is an amenable number.

99579825345 is an abundant number, since it is smaller than the sum of its proper divisors (126926967615).

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

99579825345 is a wasteful number, since it uses less digits than its factorization.

99579825345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390175.

The product of its digits is 122472000, while the sum is 66.

The spelling of 99579825345 in words is "ninety-nine billion, five hundred seventy-nine million, eight hundred twenty-five thousand, three hundred forty-five".