85662323640 has 48 divisors (see below), whose sum is σ = 278402553000. Its totient is φ = 22843286208.

The previous prime is 85662323639. The next prime is 85662323651. The reversal of 85662323640 is 4632326658.

It is a happy number.

85662323640 is a `hidden beast` number, since 8 + 56 + 6 + 232 + 364 + 0 = 666.

It is a super-3 number, since 3×85662323640³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 118975090 + ... + 118975809.

Almost surely, 2^85662323640 is an apocalyptic number.

It is an amenable number.

85662323640 is an abundant number, since it is smaller than the sum of its proper divisors (192740229360).

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

85662323640 is a wasteful number, since it uses less digits than its factorization.

85662323640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237950916 (or 237950909 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 85662323640 in words is "eighty-five billion, six hundred sixty-two million, three hundred twenty-three thousand, six hundred forty".