66376984 has 8 divisors (see below), whose sum is σ = 124456860. Its totient is φ = 33188488.

The previous prime is 66376979. The next prime is 66376997. The reversal of 66376984 is 48967366.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4148554 + ... + 4148569.

Almost surely, 2^66376984 is an apocalyptic number.

It is an amenable number.

66376984 is a deficient number, since it is larger than the sum of its proper divisors (58079876).

66376984 is a wasteful number, since it uses less digits than its factorization.

66376984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8297129 (or 8297125 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 49.

The square root of 66376984 is about 8147.2071288264. The cubic root of 66376984 is about 404.8919774904.

The spelling of 66376984 in words is "sixty-six million, three hundred seventy-six thousand, nine hundred eighty-four".