16246561444 has 27 divisors (see below), whose sum is σ = 28761349953. Its totient is φ = 8030106000.

The previous prime is 16246561417. The next prime is 16246561459. The reversal of 16246561444 is 44416564261.

It is a happy number.

The square root of 16246561444 is 127462.

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., 15609503844 + 637057600 = 124938^2 + 25240^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16246561444.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 25747009 + ... + 25747639.

Almost surely, 2^16246561444 is an apocalyptic number.

16246561444 is the 127462-nd square number.

It is an amenable number.

16246561444 is a deficient number, since it is larger than the sum of its proper divisors (12514788509).

16246561444 is an frugal number, since it uses more digits than its factorization.

16246561444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468 (or 734 counting only the distinct ones).

The product of its digits is 552960, while the sum is 43.

The spelling of 16246561444 in words is "sixteen billion, two hundred forty-six million, five hundred sixty-one thousand, four hundred forty-four".