83736064440 has 128 divisors (see below), whose sum is σ = 318994560000. Its totient is φ = 19139670144.

The previous prime is 83736064429. The next prime is 83736064459. The reversal of 83736064440 is 4446063738.

83736064440 is a `hidden beast` number, since 8 + 37 + 3 + 606 + 4 + 4 + 4 + 0 = 666.

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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5530540 + ... + 5545659.

It is an arithmetic number, because the mean of its divisors is an integer number (2492145000).

Almost surely, 2^83736064440 is an apocalyptic number.

It is an amenable number.

83736064440 is an abundant number, since it is smaller than the sum of its proper divisors (235258495560).

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

83736064440 is a wasteful number, since it uses less digits than its factorization.

83736064440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11076226 (or 11076216 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The spelling of 83736064440 in words is "eighty-three billion, seven hundred thirty-six million, sixty-four thousand, four hundred forty".