66373713 has 12 divisors (see below), whose sum is σ = 109569408. Its totient is φ = 37927800.

The previous prime is 66373679. The next prime is 66373733. The reversal of 66373713 is 31737366.

66373713 is a `hidden beast` number, since 6 + 637 + 3 + 7 + 13 = 666.

66373713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66373713 - 2¹⁰ = 66372689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66373733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 526713 + ... + 526838.

It is an arithmetic number, because the mean of its divisors is an integer number (9130784).

Almost surely, 2^66373713 is an apocalyptic number.

66373713 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

66373713 is a deficient number, since it is larger than the sum of its proper divisors (43195695).

66373713 is a wasteful number, since it uses less digits than its factorization.

66373713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053564 (or 1053561 counting only the distinct ones).

The product of its digits is 47628, while the sum is 36.

The square root of 66373713 is about 8147.0063827151. The cubic root of 66373713 is about 404.8853264731.

The spelling of 66373713 in words is "sixty-six million, three hundred seventy-three thousand, seven hundred thirteen".