66244910 has 16 divisors (see below), whose sum is σ = 121021776. Its totient is φ = 26102208.

The previous prime is 66244901. The next prime is 66244931. The reversal of 66244910 is 1944266.

It is a happy number.

It is a congruent number.

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, 48767 + ... + 50106.

It is an arithmetic number, because the mean of its divisors is an integer number (7563861).

Almost surely, 2^66244910 is an apocalyptic number.

66244910 is a deficient number, since it is larger than the sum of its proper divisors (54776866).

66244910 is a wasteful number, since it uses less digits than its factorization.

66244910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98947.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 66244910 is about 8139.0976158294. The cubic root of 66244910 is about 404.6232537705.

The spelling of 66244910 in words is "sixty-six million, two hundred forty-four thousand, nine hundred ten".