16166738668 has 12 divisors (see below), whose sum is σ = 28349416872. Its totient is φ = 8066905280.

The previous prime is 16166738657. The next prime is 16166738711. The reversal of 16166738668 is 86683766161.

It is a happy number.

It is a super-2 number, since 2×16166738668² (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 3 ways as a sum of consecutive naturals, for example, 4113805 + ... + 4117732.

It is an arithmetic number, because the mean of its divisors is an integer number (2362451406).

Almost surely, 2^16166738668 is an apocalyptic number.

It is an amenable number.

16166738668 is a deficient number, since it is larger than the sum of its proper divisors (12182678204).

16166738668 is a wasteful number, since it uses less digits than its factorization.

16166738668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8232032 (or 8232030 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 58.

The spelling of 16166738668 in words is "sixteen billion, one hundred sixty-six million, seven hundred thirty-eight thousand, six hundred sixty-eight".