66554032 has 10 divisors (see below), whose sum is σ = 128948468. Its totient is φ = 33277008.

The previous prime is 66553999. The next prime is 66554039. The reversal of 66554032 is 23045566.

It is a junction number, because it is equal to n+sod(n) for n = 66553985 and 66554003.

It is not an unprimeable number, because it can be changed into a prime (66554039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2079798 + ... + 2079829.

Almost surely, 2^66554032 is an apocalyptic number.

It is an amenable number.

66554032 is a deficient number, since it is larger than the sum of its proper divisors (62394436).

66554032 is a wasteful number, since it uses less digits than its factorization.

66554032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159635 (or 4159629 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 66554032 is about 8158.0654569573. The cubic root of 66554032 is about 405.2516487155.

Adding to 66554032 its reverse (23045566), we get a palindrome (89599598).

The spelling of 66554032 in words is "sixty-six million, five hundred fifty-four thousand, thirty-two".