16776668 has 6 divisors (see below), whose sum is σ = 29359176. Its totient is φ = 8388332.

The previous prime is 16776659. The next prime is 16776679. The reversal of 16776668 is 86667761.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2097080 + ... + 2097087.

It is an arithmetic number, because the mean of its divisors is an integer number (4893196).

Almost surely, 2^16776668 is an apocalyptic number.

It is an amenable number.

16776668 is a deficient number, since it is larger than the sum of its proper divisors (12582508).

16776668 is a wasteful number, since it uses less digits than its factorization.

16776668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4194171 (or 4194169 counting only the distinct ones).

The product of its digits is 508032, while the sum is 47.

The square root of 16776668 is about 4095.9331049225. The cubic root of 16776668 is about 255.9972126975.

The spelling of 16776668 in words is "sixteen million, seven hundred seventy-six thousand, six hundred sixty-eight".