16779500168 has 8 divisors (see below), whose sum is σ = 31461562830. Its totient is φ = 8389750080.

The previous prime is 16779500159. The next prime is 16779500173. The reversal of 16779500168 is 86100597761.

It can be written as a sum of positive squares in only one way, i.e., 12228378724 + 4551121444 = 110582^2 + 67462^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1048718753 + ... + 1048718768.

Almost surely, 2^16779500168 is an apocalyptic number.

It is an amenable number.

16779500168 is a deficient number, since it is larger than the sum of its proper divisors (14682062662).

16779500168 is a wasteful number, since it uses less digits than its factorization.

16779500168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097437527 (or 2097437523 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 50.

The spelling of 16779500168 in words is "sixteen billion, seven hundred seventy-nine million, five hundred thousand, one hundred sixty-eight".