86706506565 has 32 divisors (see below), whose sum is σ = 176165602560. Its totient is φ = 39637259712.

The previous prime is 86706506539. The next prime is 86706506603. The reversal of 86706506565 is 56560560768.

86706506565 is a `hidden beast` number, since 8 + 6 + 70 + 6 + 5 + 0 + 6 + 565 = 666.

It is not a de Polignac number, because 86706506565 - 2²² = 86702312261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45875514 + ... + 45877403.

It is an arithmetic number, because the mean of its divisors is an integer number (5505175080).

Almost surely, 2^86706506565 is an apocalyptic number.

It is an amenable number.

86706506565 is an abundant number, since it is smaller than the sum of its proper divisors (89459095995).

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

86706506565 is a wasteful number, since it uses less digits than its factorization.

86706506565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91752938 (or 91752932 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 54.

The spelling of 86706506565 in words is "eighty-six billion, seven hundred six million, five hundred six thousand, five hundred sixty-five".