87705994160 has 40 divisors (see below), whose sum is σ = 203970903360. Its totient is φ = 35073027072.

The previous prime is 87705994157. The next prime is 87705994177. The reversal of 87705994160 is 6149950778.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 87705994096 and 87705994105.

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 7 ways as a sum of consecutive naturals, for example, 158921 + ... + 447959.

It is an arithmetic number, because the mean of its divisors is an integer number (5099272584).

Almost surely, 2^87705994160 is an apocalyptic number.

87705994160 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87705994160 is an abundant number, since it is smaller than the sum of its proper divisors (116264909200).

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

87705994160 is a wasteful number, since it uses less digits than its factorization.

87705994160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292845 (or 292839 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 56.

The spelling of 87705994160 in words is "eighty-seven billion, seven hundred five million, nine hundred ninety-four thousand, one hundred sixty".