16660030068 has 36 divisors (see below), whose sum is σ = 45941296128. Its totient is φ = 5048493840.

The previous prime is 16660030043. The next prime is 16660030087. The reversal of 16660030068 is 86003006661.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21034996 + ... + 21035787.

Almost surely, 2^16660030068 is an apocalyptic number.

16660030068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16660030068 is an abundant number, since it is smaller than the sum of its proper divisors (29281266060).

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

16660030068 is a wasteful number, since it uses less digits than its factorization.

16660030068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42070804 (or 42070799 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 16660030068 in words is "sixteen billion, six hundred sixty million, thirty thousand, sixty-eight".