163894011 has 16 divisors (see below), whose sum is σ = 220838400. Its totient is φ = 108112928.

The previous prime is 163894001. The next prime is 163894043. The reversal of 163894011 is 110498361.

It is a cyclic number.

It is not a de Polignac number, because 163894011 - 2¹⁰ = 163892987 is a prime.

It is a super-2 number, since 2×163894011² = 53722493683336242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163894001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127705 + ... + 128981.

It is an arithmetic number, because the mean of its divisors is an integer number (13802400).

Almost surely, 2^163894011 is an apocalyptic number.

163894011 is a deficient number, since it is larger than the sum of its proper divisors (56944389).

163894011 is a wasteful number, since it uses less digits than its factorization.

163894011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 163894011 is about 12802.1096308382. The cubic root of 163894011 is about 547.2524249183.

The spelling of 163894011 in words is "one hundred sixty-three million, eight hundred ninety-four thousand, eleven".