168782022278 has 48 divisors (see below), whose sum is σ = 262910934000. Its totient is φ = 81240405120.

The previous prime is 168782022271. The next prime is 168782022293. The reversal of 168782022278 is 872220287861.

168782022278 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168782022271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118111268 + ... + 118112696.

It is an arithmetic number, because the mean of its divisors is an integer number (5477311125).

Almost surely, 2^168782022278 is an apocalyptic number.

168782022278 is a deficient number, since it is larger than the sum of its proper divisors (94128911722).

168782022278 is a wasteful number, since it uses less digits than its factorization.

168782022278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881 (or 1820 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 53.

The spelling of 168782022278 in words is "one hundred sixty-eight billion, seven hundred eighty-two million, twenty-two thousand, two hundred seventy-eight".