66371292 has 96 divisors (see below), whose sum is σ = 189994560. Its totient is φ = 19906560.

The previous prime is 66371273. The next prime is 66371309. The reversal of 66371292 is 29217366.

66371292 is a `hidden beast` number, since 6 + 637 + 12 + 9 + 2 = 666.

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

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, 56988 + ... + 58140.

It is an arithmetic number, because the mean of its divisors is an integer number (1979110).

Almost surely, 2^66371292 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 66371292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94997280).

66371292 is an abundant number, since it is smaller than the sum of its proper divisors (123623268).

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

66371292 is a wasteful number, since it uses less digits than its factorization.

66371292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220 (or 1212 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 66371292 is about 8146.8577991763. The cubic root of 66371292 is about 404.8804036442.

The spelling of 66371292 in words is "sixty-six million, three hundred seventy-one thousand, two hundred ninety-two".