66073976 has 32 divisors (see below), whose sum is σ = 126403200. Its totient is φ = 32373600.

The previous prime is 66073961. The next prime is 66073981. The reversal of 66073976 is 67937066.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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, 99935 + ... + 100593.

It is an arithmetic number, because the mean of its divisors is an integer number (3950100).

Almost surely, 2^66073976 is an apocalyptic number.

It is an amenable number.

66073976 is a deficient number, since it is larger than the sum of its proper divisors (60329224).

66073976 is a wasteful number, since it uses less digits than its factorization.

66073976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 44.

The square root of 66073976 is about 8128.5900376388. The cubic root of 66073976 is about 404.2749329445.

The spelling of 66073976 in words is "sixty-six million, seventy-three thousand, nine hundred seventy-six".