85664298761 has 8 divisors (see below), whose sum is σ = 86964715584. Its totient is φ = 84373138000.

The previous prime is 85664298743. The next prime is 85664298793. The reversal of 85664298761 is 16789246658.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85664298761 - 2²² = 85660104457 is a prime.

It is a super-2 number, since 2×85664298761² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85664298694 and 85664298703.

It is not an unprimeable number, because it can be changed into a prime (85664298661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2295365 + ... + 2332386.

It is an arithmetic number, because the mean of its divisors is an integer number (10870589448).

Almost surely, 2^85664298761 is an apocalyptic number.

It is an amenable number.

85664298761 is a deficient number, since it is larger than the sum of its proper divisors (1300416823).

85664298761 is a wasteful number, since it uses less digits than its factorization.

85664298761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4628031.

The product of its digits is 34836480, while the sum is 62.

The spelling of 85664298761 in words is "eighty-five billion, six hundred sixty-four million, two hundred ninety-eight thousand, seven hundred sixty-one".