87660609055659 has 12 divisors (see below), whose sum is σ = 126621667006536. Its totient is φ = 58440042686592.

The previous prime is 87660609055601. The next prime is 87660609055699. The reversal of 87660609055659 is 95655090606678.

87660609055659 is a `hidden beast` number, since 8 + 7 + 6 + 6 + 0 + 60 + 9 + 0 + 556 + 5 + 9 = 666.

It is not a de Polignac number, because 87660609055659 - 2⁸ = 87660609055403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87660609055699) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28747174 + ... + 31649979.

It is an arithmetic number, because the mean of its divisors is an integer number (10551805583878).

Almost surely, 2^{87660609055659} is an apocalyptic number.

87660609055659 is a deficient number, since it is larger than the sum of its proper divisors (38961057950877).

87660609055659 is a wasteful number, since it uses less digits than its factorization.

87660609055659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60558426 (or 60558423 counting only the distinct ones).

The product of its (nonzero) digits is 734832000, while the sum is 72.

The spelling of 87660609055659 in words is "eighty-seven trillion, six hundred sixty billion, six hundred nine million, fifty-five thousand, six hundred fifty-nine".