163940996 has 12 divisors (see below), whose sum is σ = 303773148. Its totient is φ = 77148672.

The previous prime is 163940993. The next prime is 163941023. The reversal of 163940996 is 699049361.

163940996 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 79852096 + 84088900 = 8936^2 + 9170^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 163940996.

It is not an unprimeable number, because it can be changed into a prime (163940993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1205381 + ... + 1205516.

It is an arithmetic number, because the mean of its divisors is an integer number (25314429).

Almost surely, 2^163940996 is an apocalyptic number.

It is an amenable number.

163940996 is a deficient number, since it is larger than the sum of its proper divisors (139832152).

163940996 is a wasteful number, since it uses less digits than its factorization.

163940996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410918 (or 2410916 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 163940996 is about 12803.9445484585. The cubic root of 163940996 is about 547.3047152131.

The spelling of 163940996 in words is "one hundred sixty-three million, nine hundred forty thousand, nine hundred ninety-six".