16662455444452 has 12 divisors (see below), whose sum is σ = 29181370691116. Its totient is φ = 8324920961280.

The previous prime is 16662455444441. The next prime is 16662455444461. The reversal of 16662455444452 is 25444455426661.

It can be written as a sum of positive squares in 2 ways, for example, as 9141346653156 + 7521108791296 = 3023466^2 + 2742464^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1576684293 + ... + 1576694860.

Almost surely, 2^{16662455444452} is an apocalyptic number.

It is an amenable number.

16662455444452 is a deficient number, since it is larger than the sum of its proper divisors (12518915246664).

16662455444452 is a wasteful number, since it uses less digits than its factorization.

16662455444452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153380478 (or 3153380476 counting only the distinct ones).

The product of its digits is 110592000, while the sum is 58.

The spelling of 16662455444452 in words is "sixteen trillion, six hundred sixty-two billion, four hundred fifty-five million, four hundred forty-four thousand, four hundred fifty-two".