66373344 has 120 divisors (see below), whose sum is σ = 202161960. Its totient is φ = 21337344.

The previous prime is 66373339. The next prime is 66373367. The reversal of 66373344 is 44337366.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 66373299 and 66373308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 74727 + ... + 75609.

It is an arithmetic number, because the mean of its divisors is an integer number (1684683).

Almost surely, 2^66373344 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 66373344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101080980).

66373344 is an abundant number, since it is smaller than the sum of its proper divisors (135788616).

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

66373344 is a wasteful number, since it uses less digits than its factorization.

66373344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 917 counting only the distinct ones).

The product of its digits is 108864, while the sum is 36.

The square root of 66373344 is about 8146.9837363284. The cubic root of 66373344 is about 404.8845761612.

The spelling of 66373344 in words is "sixty-six million, three hundred seventy-three thousand, three hundred forty-four".