16490654066 has 8 divisors (see below), whose sum is σ = 24872644524. Its totient is φ = 8199772560.

The previous prime is 16490654009. The next prime is 16490654077. The reversal of 16490654066 is 66045609461.

It can be written as a sum of positive squares in 2 ways, for example, as 14263286041 + 2227368025 = 119429^2 + 47195^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16490654066.

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, 22776785 + ... + 22777508.

Almost surely, 2^16490654066 is an apocalyptic number.

16490654066 is a deficient number, since it is larger than the sum of its proper divisors (8381990458).

16490654066 is a wasteful number, since it uses less digits than its factorization.

16490654066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45554476.

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 16490654066 in words is "sixteen billion, four hundred ninety million, six hundred fifty-four thousand, sixty-six".