85811488517164 has 6 divisors (see below), whose sum is σ = 150170104905044. Its totient is φ = 42905744258580.

The previous prime is 85811488517149. The next prime is 85811488517191. The reversal of 85811488517164 is 46171588411858.

It is a super-2 number, since 2×85811488517164² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85811488517164.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10726436064642 + ... + 10726436064649.

Almost surely, 2^{85811488517164} is an apocalyptic number.

It is an amenable number.

85811488517164 is a deficient number, since it is larger than the sum of its proper divisors (64358616387880).

85811488517164 is a wasteful number, since it uses less digits than its factorization.

85811488517164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21452872129295 (or 21452872129293 counting only the distinct ones).

The product of its digits is 68812800, while the sum is 67.

The spelling of 85811488517164 in words is "eighty-five trillion, eight hundred eleven billion, four hundred eighty-eight million, five hundred seventeen thousand, one hundred sixty-four".