1442660427664 has 15 divisors (see below), whose sum is σ = 2795163887217. Its totient is φ = 721327811616.

The previous prime is 1442660427631. The next prime is 1442660427707. The reversal of 1442660427664 is 4667240662441.

The square root of 1442660427664 is 1201108.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 28920403600 + 1413740024064 = 170060^2 + 1189008^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4654294 + ... + 4954570.

Almost surely, 2^{1442660427664} is an apocalyptic number.

1442660427664 is the 1201108-th square number.

It is an amenable number.

1442660427664 is a deficient number, since it is larger than the sum of its proper divisors (1352503459553).

1442660427664 is an frugal number, since it uses more digits than its factorization.

1442660427664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600562 (or 300279 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 52.

The spelling of 1442660427664 in words is "one trillion, four hundred forty-two billion, six hundred sixty million, four hundred twenty-seven thousand, six hundred sixty-four".