216401001163 has 32 divisors (see below), whose sum is σ = 242844733440. Its totient is φ = 191887898400.

The previous prime is 216401001137. The next prime is 216401001191. The reversal of 216401001163 is 361100104612.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216401001163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216401001263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4396656 + ... + 4445602.

It is an arithmetic number, because the mean of its divisors is an integer number (7588897920).

Almost surely, 2^216401001163 is an apocalyptic number.

216401001163 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

216401001163 is a deficient number, since it is larger than the sum of its proper divisors (26443732277).

216401001163 is a wasteful number, since it uses less digits than its factorization.

216401001163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49207.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 216401001163 its reverse (361100104612), we get a palindrome (577501105775).

The spelling of 216401001163 in words is "two hundred sixteen billion, four hundred one million, one thousand, one hundred sixty-three".