16163644294 has 8 divisors (see below), whose sum is σ = 27709104528. Its totient is φ = 6927276120.

The previous prime is 16163644241. The next prime is 16163644297. The reversal of 16163644294 is 49244636161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×16163644294² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16163644297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577272997 + ... + 577273024.

It is an arithmetic number, because the mean of its divisors is an integer number (3463638066).

Almost surely, 2^16163644294 is an apocalyptic number.

16163644294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16163644294 is a deficient number, since it is larger than the sum of its proper divisors (11545460234).

16163644294 is a wasteful number, since it uses less digits than its factorization.

16163644294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154546030.

The product of its digits is 746496, while the sum is 46.

The spelling of 16163644294 in words is "sixteen billion, one hundred sixty-three million, six hundred forty-four thousand, two hundred ninety-four".