16544965466 has 16 divisors (see below), whose sum is σ = 25071088680. Its totient is φ = 8188093440.

The previous prime is 16544965457. The next prime is 16544965529. The reversal of 16544965466 is 66456944561.

It can be written as a sum of positive squares in 4 ways, for example, as 16121634841 + 423330625 = 126971^2 + 20575^2 .

It is a super-2 number, since 2×16544965466² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174146 + ... + 251826.

Almost surely, 2^16544965466 is an apocalyptic number.

16544965466 is a deficient number, since it is larger than the sum of its proper divisors (8526123214).

16544965466 is a wasteful number, since it uses less digits than its factorization.

16544965466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78769.

The product of its digits is 18662400, while the sum is 56.

The spelling of 16544965466 in words is "sixteen billion, five hundred forty-four million, nine hundred sixty-five thousand, four hundred sixty-six".