66252746 has 16 divisors (see below), whose sum is σ = 114749376. Its totient is φ = 28100736.

The previous prime is 66252731. The next prime is 66252773. The reversal of 66252746 is 64725266.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23036 + ... + 25751.

It is an arithmetic number, because the mean of its divisors is an integer number (7171836).

Almost surely, 2^66252746 is an apocalyptic number.

66252746 is a deficient number, since it is larger than the sum of its proper divisors (48496630).

66252746 is a wasteful number, since it uses less digits than its factorization.

66252746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48893.

The product of its digits is 120960, while the sum is 38.

The square root of 66252746 is about 8139.5789817410. The cubic root of 66252746 is about 404.6392072116.

The spelling of 66252746 in words is "sixty-six million, two hundred fifty-two thousand, seven hundred forty-six".