16574760049 has 9 divisors (see below), whose sum is σ = 17130802059. Its totient is φ = 16036228080.

The previous prime is 16574760047. The next prime is 16574760101. The reversal of 16574760049 is 94006747561.

The square root of 16574760049 is 128743.

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., 198951025 + 16375809024 = 14105^2 + 127968^2 .

It is not a de Polignac number, because 16574760049 - 2¹ = 16574760047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16574759984 and 16574760011.

It is not an unprimeable number, because it can be changed into a prime (16574760047) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3988957 + ... + 3993109.

It is an arithmetic number, because the mean of its divisors is an integer number (1903422451).

Almost surely, 2^16574760049 is an apocalyptic number.

16574760049 is the 128743-rd square number.

16574760049 is the 64372-nd centered octagonal number.

It is an amenable number.

16574760049 is a deficient number, since it is larger than the sum of its proper divisors (556042010).

16574760049 is an frugal number, since it uses more digits than its factorization.

16574760049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8368 (or 4184 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 49.

Multiplying 16574760049 by its sum of digits (49), we get a square (812163242401 = 901201²).

The spelling of 16574760049 in words is "sixteen billion, five hundred seventy-four million, seven hundred sixty thousand, forty-nine".