16646467068 has 108 divisors (see below), whose sum is σ = 52859126320. Its totient is φ = 4323749760.

The previous prime is 16646467039. The next prime is 16646467087. The reversal of 16646467068 is 86076464661.

It is a happy number.

16646467068 is a `hidden beast` number, since 1 + 66 + 464 + 67 + 0 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 242473 + ... + 303456.

Almost surely, 2^16646467068 is an apocalyptic number.

16646467068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16646467068 is an abundant number, since it is smaller than the sum of its proper divisors (36212659252).

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

16646467068 is a wasteful number, since it uses less digits than its factorization.

16646467068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545968 (or 545952 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 16646467068 in words is "sixteen billion, six hundred forty-six million, four hundred sixty-seven thousand, sixty-eight".