168634458380 has 12 divisors (see below), whose sum is σ = 354132362640. Its totient is φ = 67453783344.

The previous prime is 168634458373. The next prime is 168634458397. The reversal of 168634458380 is 83854436861.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4215861440 + ... + 4215861479.

It is an arithmetic number, because the mean of its divisors is an integer number (29511030220).

Almost surely, 2^168634458380 is an apocalyptic number.

168634458380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168634458380 is an abundant number, since it is smaller than the sum of its proper divisors (185497904260).

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

168634458380 is a wasteful number, since it uses less digits than its factorization.

168634458380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8431722928 (or 8431722926 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 56.

The spelling of 168634458380 in words is "one hundred sixty-eight billion, six hundred thirty-four million, four hundred fifty-eight thousand, three hundred eighty".