86516559951 has 4 divisors (see below), whose sum is σ = 115355413272. Its totient is φ = 57677706632.

The previous prime is 86516559929. The next prime is 86516559973. The reversal of 86516559951 is 15995561568.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (86516559929) and next prime (86516559973).

It is a cyclic number.

It is not a de Polignac number, because 86516559951 - 2⁷ = 86516559823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86516559251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14419426656 + ... + 14419426661.

It is an arithmetic number, because the mean of its divisors is an integer number (28838853318).

Almost surely, 2^86516559951 is an apocalyptic number.

86516559951 is a deficient number, since it is larger than the sum of its proper divisors (28838853321).

86516559951 is a wasteful number, since it uses less digits than its factorization.

86516559951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28838853320.

The product of its digits is 14580000, while the sum is 60.

The spelling of 86516559951 in words is "eighty-six billion, five hundred sixteen million, five hundred fifty-nine thousand, nine hundred fifty-one".