168601451228 has 24 divisors (see below), whose sum is σ = 337224633312. Its totient is φ = 72253108224.

The previous prime is 168601451209. The next prime is 168601451231. The reversal of 168601451228 is 822154106861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267476 + ... + 639332.

It is an arithmetic number, because the mean of its divisors is an integer number (14051026388).

Almost surely, 2^168601451228 is an apocalyptic number.

It is an amenable number.

168601451228 is an abundant number, since it is smaller than the sum of its proper divisors (168623182084).

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

168601451228 is a wasteful number, since it uses less digits than its factorization.

168601451228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388061 (or 388059 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The spelling of 168601451228 in words is "one hundred sixty-eight billion, six hundred one million, four hundred fifty-one thousand, two hundred twenty-eight".