87099139720320 has 384 divisors, whose sum is σ = 347798355387840. Its totient is φ = 18376961089536.

The previous prime is 87099139720283. The next prime is 87099139720331. The reversal of 87099139720320 is 2302793199078.

It is a tau number, because it is divible by the number of its divisors (384).

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 (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34384602 + ... + 36830681.

Almost surely, 2^{87099139720320} is an apocalyptic number.

87099139720320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87099139720320 is an abundant number, since it is smaller than the sum of its proper divisors (260699215667520).

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

87099139720320 is a wasteful number, since it uses less digits than its factorization.

87099139720320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71215332 (or 71215313 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 60.

The spelling of 87099139720320 in words is "eighty-seven trillion, ninety-nine billion, one hundred thirty-nine million, seven hundred twenty thousand, three hundred twenty".