168774983936 has 216 divisors, whose sum is σ = 372582723744. Its totient is φ = 76255395840.

The previous prime is 168774983921. The next prime is 168774983941. The reversal of 168774983936 is 639389477861.

It is a self number, because there is not a number n which added to its sum of digits gives 168774983936.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 549755495 + ... + 549755801.

Almost surely, 2^168774983936 is an apocalyptic number.

168774983936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168774983936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186291361872).

168774983936 is an abundant number, since it is smaller than the sum of its proper divisors (203807739808).

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

168774983936 is a wasteful number, since it uses less digits than its factorization.

168774983936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577 (or 550 counting only the distinct ones).

The product of its digits is 329204736, while the sum is 71.

The spelling of 168774983936 in words is "one hundred sixty-eight billion, seven hundred seventy-four million, nine hundred eighty-three thousand, nine hundred thirty-six".