66848972 has 6 divisors (see below), whose sum is σ = 116985708. Its totient is φ = 33424484.

The previous prime is 66848941. The next prime is 66848987. The reversal of 66848972 is 27984866.

66848972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 66848972.

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 as a sum of consecutive naturals, namely, 8356118 + ... + 8356125.

It is an arithmetic number, because the mean of its divisors is an integer number (19497618).

Almost surely, 2^66848972 is an apocalyptic number.

It is an amenable number.

66848972 is a deficient number, since it is larger than the sum of its proper divisors (50136736).

66848972 is a wasteful number, since it uses less digits than its factorization.

66848972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16712247 (or 16712245 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 50.

The square root of 66848972 is about 8176.1220636681. The cubic root of 66848972 is about 405.8494025975.

The spelling of 66848972 in words is "sixty-six million, eight hundred forty-eight thousand, nine hundred seventy-two".