163961303792 has 160 divisors (see below), whose sum is σ = 395595555264. Its totient is φ = 64677888000.

The previous prime is 163961303789. The next prime is 163961303899. The reversal of 163961303792 is 297303169361.

It is a self number, because there is not a number n which added to its sum of digits gives 163961303792.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49668542 + ... + 49671842.

Almost surely, 2^163961303792 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 163961303792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197797777632).

163961303792 is an abundant number, since it is smaller than the sum of its proper divisors (231634251472).

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

163961303792 is a wasteful number, since it uses less digits than its factorization.

163961303792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4627 (or 4621 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 50.

The spelling of 163961303792 in words is "one hundred sixty-three billion, nine hundred sixty-one million, three hundred three thousand, seven hundred ninety-two".