66719852 has 12 divisors (see below), whose sum is σ = 116864496. Its totient is φ = 33330000.

The previous prime is 66719777. The next prime is 66719857. The reversal of 66719852 is 25891766.

66719852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66719857) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2024 + ... + 11727.

It is an arithmetic number, because the mean of its divisors is an integer number (9738708).

Almost surely, 2^66719852 is an apocalyptic number.

It is an amenable number.

66719852 is a deficient number, since it is larger than the sum of its proper divisors (50144644).

66719852 is a wasteful number, since it uses less digits than its factorization.

66719852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14968 (or 14966 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 66719852 is about 8168.2220831709. Note that the first 3 decimals coincide. The cubic root of 66719852 is about 405.5879323568.

The spelling of 66719852 in words is "sixty-six million, seven hundred nineteen thousand, eight hundred fifty-two".