66421079332 has 24 divisors (see below), whose sum is σ = 116878798400. Its totient is φ = 33027302880.

The previous prime is 66421079323. The next prime is 66421079369. The reversal of 66421079332 is 23397012466.

66421079332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1676698 + ... + 1715854.

Almost surely, 2^66421079332 is an apocalyptic number.

It is an amenable number.

66421079332 is a deficient number, since it is larger than the sum of its proper divisors (50457719068).

66421079332 is a wasteful number, since it uses less digits than its factorization.

66421079332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41491 (or 41489 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 43.

The spelling of 66421079332 in words is "sixty-six billion, four hundred twenty-one million, seventy-nine thousand, three hundred thirty-two".