66055672 has 16 divisors (see below), whose sum is σ = 124032240. Its totient is φ = 32980416.

The previous prime is 66055669. The next prime is 66055687. The reversal of 66055672 is 27655066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388 + ... + 11500.

It is an arithmetic number, because the mean of its divisors is an integer number (7752015).

Almost surely, 2^66055672 is an apocalyptic number.

It is an amenable number.

66055672 is a deficient number, since it is larger than the sum of its proper divisors (57976568).

66055672 is a wasteful number, since it uses less digits than its factorization.

66055672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11862 (or 11858 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 66055672 is about 8127.4640571337. The cubic root of 66055672 is about 404.2375983677.

The spelling of 66055672 in words is "sixty-six million, fifty-five thousand, six hundred seventy-two".