66244262044 has 6 divisors (see below), whose sum is σ = 115927458584. Its totient is φ = 33122131020.

The previous prime is 66244261999. The next prime is 66244262053. The reversal of 66244262044 is 44026244266.

It is a junction number, because it is equal to n+sod(n) for n = 66244261988 and 66244262006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8280532752 + ... + 8280532759.

Almost surely, 2^66244262044 is an apocalyptic number.

It is an amenable number.

66244262044 is a deficient number, since it is larger than the sum of its proper divisors (49683196540).

66244262044 is a wasteful number, since it uses less digits than its factorization.

66244262044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16561065515 (or 16561065513 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 66244262044 in words is "sixty-six billion, two hundred forty-four million, two hundred sixty-two thousand, forty-four".