66375492 has 12 divisors (see below), whose sum is σ = 154876176. Its totient is φ = 22125160.

The previous prime is 66375487. The next prime is 66375511. The reversal of 66375492 is 29457366.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2765634 + ... + 2765657.

It is an arithmetic number, because the mean of its divisors is an integer number (12906348).

Almost surely, 2^66375492 is an apocalyptic number.

It is an amenable number.

66375492 is an abundant number, since it is smaller than the sum of its proper divisors (88500684).

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

66375492 is a wasteful number, since it uses less digits than its factorization.

66375492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5531298 (or 5531296 counting only the distinct ones).

The product of its digits is 272160, while the sum is 42.

The square root of 66375492 is about 8147.1155631917. The cubic root of 66375492 is about 404.8889437915. Note that the first 3 decimals are identical.

The spelling of 66375492 in words is "sixty-six million, three hundred seventy-five thousand, four hundred ninety-two".