85665374318560 has 24 divisors (see below), whose sum is σ = 202384446827976. Its totient is φ = 34266149727360.

The previous prime is 85665374318479. The next prime is 85665374318567. The reversal of 85665374318560 is 6581347356658.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85665374318567) 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, 267704294586 + ... + 267704294905.

It is an arithmetic number, because the mean of its divisors is an integer number (8432685284499).

Almost surely, 2^{85665374318560} is an apocalyptic number.

85665374318560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85665374318560 is an abundant number, since it is smaller than the sum of its proper divisors (116719072509416).

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

85665374318560 is a wasteful number, since it uses less digits than its factorization.

85665374318560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535408589506 (or 535408589498 counting only the distinct ones).

The product of its (nonzero) digits is 435456000, while the sum is 67.

The spelling of 85665374318560 in words is "eighty-five trillion, six hundred sixty-five billion, three hundred seventy-four million, three hundred eighteen thousand, five hundred sixty".