66192874 has 32 divisors (see below), whose sum is σ = 113467392. Its totient is φ = 28686000.

The previous prime is 66192853. The next prime is 66192881. The reversal of 66192874 is 47829166.

It is a self number, because there is not a number n which added to its sum of digits gives 66192874.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47739 + ... + 49105.

It is an arithmetic number, because the mean of its divisors is an integer number (3545856).

Almost surely, 2^66192874 is an apocalyptic number.

66192874 is a deficient number, since it is larger than the sum of its proper divisors (47274518).

66192874 is a wasteful number, since it uses less digits than its factorization.

66192874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482.

The product of its digits is 145152, while the sum is 43.

The square root of 66192874 is about 8135.9003189567. The cubic root of 66192874 is about 404.5172808940.

The spelling of 66192874 in words is "sixty-six million, one hundred ninety-two thousand, eight hundred seventy-four".