66376408 has 32 divisors (see below), whose sum is σ = 145267200. Its totient is φ = 27840672.

The previous prime is 66376399. The next prime is 66376411. The reversal of 66376408 is 80467366.

It is a congruent number.

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, 9978 + ... + 15241.

It is an arithmetic number, because the mean of its divisors is an integer number (4539600).

Almost surely, 2^66376408 is an apocalyptic number.

It is an amenable number.

66376408 is an abundant number, since it is smaller than the sum of its proper divisors (78890792).

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

66376408 is a wasteful number, since it uses less digits than its factorization.

66376408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25279 (or 25275 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 66376408 is about 8147.1717792127. The cubic root of 66376408 is about 404.8908063091.

The spelling of 66376408 in words is "sixty-six million, three hundred seventy-six thousand, four hundred eight".