16630261664 has 12 divisors (see below), whose sum is σ = 32740827714. Its totient is φ = 8315130816.

The previous prime is 16630261663. The next prime is 16630261673. The reversal of 16630261664 is 46616203661.

It can be written as a sum of positive squares in only one way, i.e., 13183632400 + 3446629264 = 114820^2 + 58708^2 .

It is not an unprimeable number, because it can be changed into a prime (16630261663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259847807 + ... + 259847870.

Almost surely, 2^16630261664 is an apocalyptic number.

It is an amenable number.

16630261664 is a deficient number, since it is larger than the sum of its proper divisors (16110566050).

16630261664 is an equidigital number, since it uses as much as digits as its factorization.

16630261664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519695687 (or 519695679 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 16630261664 in words is "sixteen billion, six hundred thirty million, two hundred sixty-one thousand, six hundred sixty-four".