163251396 has 192 divisors, whose sum is σ = 537384960. Its totient is φ = 41627520.

The previous prime is 163251383. The next prime is 163251397. The reversal of 163251396 is 693152361.

163251396 is a `hidden beast` number, since 1 + 632 + 5 + 13 + 9 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 163251396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163251397) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 557026 + ... + 557318.

It is an arithmetic number, because the mean of its divisors is an integer number (2798880).

Almost surely, 2^163251396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163251396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268692480).

163251396 is an abundant number, since it is smaller than the sum of its proper divisors (374133564).

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

163251396 is a wasteful number, since it uses less digits than its factorization.

163251396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 383 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 163251396 is about 12776.9869687654. The cubic root of 163251396 is about 546.5362440865.

The spelling of 163251396 in words is "one hundred sixty-three million, two hundred fifty-one thousand, three hundred ninety-six".