163311944894 has 16 divisors (see below), whose sum is σ = 284708476800. Its totient is φ = 68804547864.

The previous prime is 163311944891. The next prime is 163311944923. The reversal of 163311944894 is 498449113361.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163311944891) 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, 98856284 + ... + 98857935.

It is an arithmetic number, because the mean of its divisors is an integer number (17794279800).

Almost surely, 2^163311944894 is an apocalyptic number.

163311944894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

163311944894 is a deficient number, since it is larger than the sum of its proper divisors (121396531906).

163311944894 is a wasteful number, since it uses less digits than its factorization.

163311944894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197714287.

The product of its digits is 2239488, while the sum is 53.

The spelling of 163311944894 in words is "one hundred sixty-three billion, three hundred eleven million, nine hundred forty-four thousand, eight hundred ninety-four".