168016809776 has 10 divisors (see below), whose sum is σ = 325532568972. Its totient is φ = 84008404880.

The previous prime is 168016809769. The next prime is 168016809781. The reversal of 168016809776 is 677908610861.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5250525290 + ... + 5250525321.

Almost surely, 2^168016809776 is an apocalyptic number.

168016809776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

168016809776 is a deficient number, since it is larger than the sum of its proper divisors (157515759196).

168016809776 is a wasteful number, since it uses less digits than its factorization.

168016809776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10501050619 (or 10501050613 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 59.

The spelling of 168016809776 in words is "one hundred sixty-eight billion, sixteen million, eight hundred nine thousand, seven hundred seventy-six".