16660630668 has 48 divisors (see below), whose sum is σ = 42425421696. Its totient is φ = 5046706560.

The previous prime is 16660630627. The next prime is 16660630687. The reversal of 16660630668 is 86603606661.

It is a super-2 number, since 2×16660630668² (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 15 ways as a sum of consecutive naturals, for example, 334855 + ... + 381377.

It is an arithmetic number, because the mean of its divisors is an integer number (883862952).

Almost surely, 2^16660630668 is an apocalyptic number.

It is an amenable number.

16660630668 is an abundant number, since it is smaller than the sum of its proper divisors (25764791028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16660630668 is a wasteful number, since it uses less digits than its factorization.

16660630668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49254 (or 49252 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 48.

The spelling of 16660630668 in words is "sixteen billion, six hundred sixty million, six hundred thirty thousand, six hundred sixty-eight".