66368432 has 40 divisors (see below), whose sum is σ = 144511584. Its totient is φ = 29297664.

The previous prime is 66368411. The next prime is 66368437. The reversal of 66368432 is 23486366.

It is a super-2 number, since 2×66368432² = 8809537532277248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66368437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2153 + ... + 11720.

Almost surely, 2^66368432 is an apocalyptic number.

It is an amenable number.

66368432 is an abundant number, since it is smaller than the sum of its proper divisors (78143152).

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

66368432 is a wasteful number, since it uses less digits than its factorization.

66368432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13917 (or 13911 counting only the distinct ones).

The product of its digits is 124416, while the sum is 38.

The square root of 66368432 is about 8146.6822694886. The cubic root of 66368432 is about 404.8745880044.

The spelling of 66368432 in words is "sixty-six million, three hundred sixty-eight thousand, four hundred thirty-two".