66373692 has 96 divisors (see below), whose sum is σ = 199825920. Its totient is φ = 16638720.

The previous prime is 66373679. The next prime is 66373733. The reversal of 66373692 is 29637366.

66373692 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

66373692 is strictly pandigital in base 9.

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, 25558 + ... + 28034.

It is an arithmetic number, because the mean of its divisors is an integer number (2081520).

Almost surely, 2^66373692 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66373692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99912960).

66373692 is an abundant number, since it is smaller than the sum of its proper divisors (133452228).

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

66373692 is a wasteful number, since it uses less digits than its factorization.

66373692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531 (or 2529 counting only the distinct ones).

The product of its digits is 244944, while the sum is 42.

The square root of 66373692 is about 8147.0050938980. The cubic root of 66373692 is about 404.8852837725.

The spelling of 66373692 in words is "sixty-six million, three hundred seventy-three thousand, six hundred ninety-two".