16780093444 has 27 divisors (see below), whose sum is σ = 29597759751. Its totient is φ = 8324111880.

The previous prime is 16780093427. The next prime is 16780093501. The reversal of 16780093444 is 44439008761.

The square root of 16780093444 is 129538.

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

It is a super-2 number, since 2×16780093444² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16780093394 and 16780093403.

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, 61919029 + ... + 61919299.

Almost surely, 2^16780093444 is an apocalyptic number.

16780093444 is the 129538-th square number.

It is an amenable number.

16780093444 is a deficient number, since it is larger than the sum of its proper divisors (12817666307).

16780093444 is an frugal number, since it uses more digits than its factorization.

16780093444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 16780093444 in words is "sixteen billion, seven hundred eighty million, ninety-three thousand, four hundred forty-four".