66194952 has 32 divisors (see below), whose sum is σ = 166512480. Its totient is φ = 21928320.

The previous prime is 66194939. The next prime is 66194977. The reversal of 66194952 is 25949166.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4549 + ... + 12372.

It is an arithmetic number, because the mean of its divisors is an integer number (5203515).

Almost surely, 2^66194952 is an apocalyptic number.

It is an amenable number.

66194952 is an abundant number, since it is smaller than the sum of its proper divisors (100317528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66194952 is a wasteful number, since it uses less digits than its factorization.

66194952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17093 (or 17089 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 66194952 is about 8136.0280235506. The cubic root of 66194952 is about 404.5215138679.

The spelling of 66194952 in words is "sixty-six million, one hundred ninety-four thousand, nine hundred fifty-two".