163169394 has 16 divisors (see below), whose sum is σ = 327503520. Its totient is φ = 54195680.

The previous prime is 163169393. The next prime is 163169441. The reversal of 163169394 is 493961361.

163169394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×163169394² = 53248502276654472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163169393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46704 + ... + 50075.

It is an arithmetic number, because the mean of its divisors is an integer number (20468970).

Almost surely, 2^163169394 is an apocalyptic number.

163169394 is an abundant number, since it is smaller than the sum of its proper divisors (164334126).

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

163169394 is a wasteful number, since it uses less digits than its factorization.

163169394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97065.

The product of its digits is 104976, while the sum is 42.

The square root of 163169394 is about 12773.7775931789. Note that the first 3 decimals coincide. The cubic root of 163169394 is about 546.4447194559. Note that the first 3 decimals are identical.

The spelling of 163169394 in words is "one hundred sixty-three million, one hundred sixty-nine thousand, three hundred ninety-four".