168902451072 has 256 divisors, whose sum is σ = 533639520000. Its totient is φ = 52432386048.

The previous prime is 168902451041. The next prime is 168902451077. The reversal of 168902451072 is 270154209861.

168902451072 is a `hidden beast` number, since 1 + 68 + 9 + 0 + 2 + 4 + 510 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168902451077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3852378 + ... + 3895974.

It is an arithmetic number, because the mean of its divisors is an integer number (2084529375).

Almost surely, 2^168902451072 is an apocalyptic number.

168902451072 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 168902451072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266819760000).

168902451072 is an abundant number, since it is smaller than the sum of its proper divisors (364737068928).

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

168902451072 is a wasteful number, since it uses less digits than its factorization.

168902451072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43698 (or 43680 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 168902451072 in words is "one hundred sixty-eight billion, nine hundred two million, four hundred fifty-one thousand, seventy-two".