66106022644 has 12 divisors (see below), whose sum is σ = 115921155168. Its totient is φ = 32985692600.

The previous prime is 66106022641. The next prime is 66106022651. The reversal of 66106022644 is 44622060166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66106022641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16827472 + ... + 16831399.

It is an arithmetic number, because the mean of its divisors is an integer number (9660096264).

Almost surely, 2^66106022644 is an apocalyptic number.

It is an amenable number.

66106022644 is a deficient number, since it is larger than the sum of its proper divisors (49815132524).

66106022644 is a wasteful number, since it uses less digits than its factorization.

66106022644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33659366 (or 33659364 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 66106022644 in words is "sixty-six billion, one hundred six million, twenty-two thousand, six hundred forty-four".