168858902352 has 120 divisors (see below), whose sum is σ = 507565745856. Its totient is φ = 48233278464.

The previous prime is 168858902351. The next prime is 168858902383. The reversal of 168858902352 is 253209858861.

It is a super-2 number, since 2×168858902352² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 168858902292 and 168858902301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168858902351) 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, 13934248 + ... + 13946360.

Almost surely, 2^168858902352 is an apocalyptic number.

168858902352 is a gapful number since it is divisible by the number (12) 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 168858902352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253782872928).

168858902352 is an abundant number, since it is smaller than the sum of its proper divisors (338706843504).

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

168858902352 is a wasteful number, since it uses less digits than its factorization.

168858902352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18065 (or 18052 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 57.

The spelling of 168858902352 in words is "one hundred sixty-eight billion, eight hundred fifty-eight million, nine hundred two thousand, three hundred fifty-two".