87165496331 has 4 divisors (see below), whose sum is σ = 87195691632. Its totient is φ = 87135301032.

The previous prime is 87165496307. The next prime is 87165496333. The reversal of 87165496331 is 13369456178.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87165496331 is a prime.

It is a super-2 number, since 2×87165496331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87165496333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15093320 + ... + 15099093.

It is an arithmetic number, because the mean of its divisors is an integer number (21798922908).

Almost surely, 2^87165496331 is an apocalyptic number.

87165496331 is a deficient number, since it is larger than the sum of its proper divisors (30195301).

87165496331 is a wasteful number, since it uses less digits than its factorization.

87165496331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30195300.

The product of its digits is 3265920, while the sum is 53.

The spelling of 87165496331 in words is "eighty-seven billion, one hundred sixty-five million, four hundred ninety-six thousand, three hundred thirty-one".