99585315780 has 48 divisors (see below), whose sum is σ = 281713528320. Its totient is φ = 26282308608.

The previous prime is 99585315779. The next prime is 99585315871. The reversal of 99585315780 is 8751358599.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

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, 8549620 + ... + 8561259.

It is an arithmetic number, because the mean of its divisors is an integer number (5869031840).

Almost surely, 2^99585315780 is an apocalyptic number.

It is an amenable number.

99585315780 is an abundant number, since it is smaller than the sum of its proper divisors (182128212540).

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

99585315780 is a wasteful number, since it uses less digits than its factorization.

99585315780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17110988 (or 17110986 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 60.

The spelling of 99585315780 in words is "ninety-nine billion, five hundred eighty-five million, three hundred fifteen thousand, seven hundred eighty".