66954632 has 32 divisors (see below), whose sum is σ = 133140000. Its totient is φ = 31477248.

The previous prime is 66954607. The next prime is 66954659. The reversal of 66954632 is 23645966.

It is a self number, because there is not a number n which added to its sum of digits gives 66954632.

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, 19544 + ... + 22712.

It is an arithmetic number, because the mean of its divisors is an integer number (4160625).

Almost surely, 2^66954632 is an apocalyptic number.

It is an amenable number.

66954632 is a deficient number, since it is larger than the sum of its proper divisors (66185368).

66954632 is a wasteful number, since it uses less digits than its factorization.

66954632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333 (or 3329 counting only the distinct ones).

The product of its digits is 233280, while the sum is 41.

The square root of 66954632 is about 8182.5810109036. The cubic root of 66954632 is about 406.0631155568.

The spelling of 66954632 in words is "sixty-six million, nine hundred fifty-four thousand, six hundred thirty-two".