163162720 has 48 divisors (see below), whose sum is σ = 440542368. Its totient is φ = 55941120.

The previous prime is 163162717. The next prime is 163162723. The reversal of 163162720 is 27261361.

It is an interprime number because it is at equal distance from previous prime (163162717) and next prime (163162723).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163162723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71721 + ... + 73960.

It is an arithmetic number, because the mean of its divisors is an integer number (9177966).

Almost surely, 2^163162720 is an apocalyptic number.

163162720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163162720 is an abundant number, since it is smaller than the sum of its proper divisors (277379648).

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

163162720 is a wasteful number, since it uses less digits than its factorization.

163162720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145703 (or 145695 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 163162720 is about 12773.5163522031. The cubic root of 163162720 is about 546.4372690763.

The spelling of 163162720 in words is "one hundred sixty-three million, one hundred sixty-two thousand, seven hundred twenty".