16630666016 has 24 divisors (see below), whose sum is σ = 32758683804. Its totient is φ = 8311000320.

The previous prime is 16630665991. The next prime is 16630666027. The reversal of 16630666016 is 61066603661.

It can be written as a sum of positive squares in 2 ways, for example, as 16590470416 + 40195600 = 128804^2 + 6340^2 .

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, 72575 + ... + 196286.

Almost surely, 2^16630666016 is an apocalyptic number.

16630666016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16630666016 is a deficient number, since it is larger than the sum of its proper divisors (16128017788).

16630666016 is a wasteful number, since it uses less digits than its factorization.

16630666016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270804 (or 270796 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 16630666016 in words is "sixteen billion, six hundred thirty million, six hundred sixty-six thousand, sixteen".