66192275 has 12 divisors (see below), whose sum is σ = 85647792. Its totient is φ = 50651040.

The previous prime is 66192263. The next prime is 66192281. The reversal of 66192275 is 57229166.

It is a happy number.

66192275 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66192275 - 2⁶ = 66192211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56984 + ... + 58133.

It is an arithmetic number, because the mean of its divisors is an integer number (7137316).

Almost surely, 2^66192275 is an apocalyptic number.

66192275 is a deficient number, since it is larger than the sum of its proper divisors (19455517).

66192275 is a wasteful number, since it uses less digits than its factorization.

66192275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115150 (or 115145 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 66192275 is about 8135.8635067213. The cubic root of 66192275 is about 404.5160606893.

The spelling of 66192275 in words is "sixty-six million, one hundred ninety-two thousand, two hundred seventy-five".