66632296 has 8 divisors (see below), whose sum is σ = 124935570. Its totient is φ = 33316144.

The previous prime is 66632263. The next prime is 66632303. The reversal of 66632296 is 69223666.

It can be written as a sum of positive squares in only one way, i.e., 63776196 + 2856100 = 7986^2 + 1690^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4164511 + ... + 4164526.

Almost surely, 2^66632296 is an apocalyptic number.

It is an amenable number.

66632296 is a deficient number, since it is larger than the sum of its proper divisors (58303274).

66632296 is a wasteful number, since it uses less digits than its factorization.

66632296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8329043 (or 8329039 counting only the distinct ones).

The product of its digits is 139968, while the sum is 40.

The square root of 66632296 is about 8162.8607730378. The cubic root of 66632296 is about 405.4104379471.

The spelling of 66632296 in words is "sixty-six million, six hundred thirty-two thousand, two hundred ninety-six".