85416183720 has 128 divisors (see below), whose sum is σ = 325395014400. Its totient is φ = 19523697408.

The previous prime is 85416183719. The next prime is 85416183731. The reversal of 85416183720 is 2738161458.

85416183720 is a `hidden beast` number, since 8 + 5 + 4 + 1 + 618 + 3 + 7 + 20 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5641659 + ... + 5656778.

It is an arithmetic number, because the mean of its divisors is an integer number (2542148550).

Almost surely, 2^85416183720 is an apocalyptic number.

It is an amenable number.

85416183720 is an abundant number, since it is smaller than the sum of its proper divisors (239978830680).

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

85416183720 is a wasteful number, since it uses less digits than its factorization.

85416183720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11298464 (or 11298454 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 85416183720 in words is "eighty-five billion, four hundred sixteen million, one hundred eighty-three thousand, seven hundred twenty".