163045940428816 has 20 divisors (see below), whose sum is σ = 316205553414400. Its totient is φ = 81444507289632.

The previous prime is 163045940428747. The next prime is 163045940428817. The reversal of 163045940428816 is 618824049540361.

It is not an unprimeable number, because it can be changed into a prime (163045940428817) 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, 4903915656 + ... + 4903948903.

It is an arithmetic number, because the mean of its divisors is an integer number (15810277670720).

Almost surely, 2^{163045940428816} is an apocalyptic number.

163045940428816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

163045940428816 is a deficient number, since it is larger than the sum of its proper divisors (153159612985584).

163045940428816 is a wasteful number, since it uses less digits than its factorization.

163045940428816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9807865606 (or 9807865600 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 61.

The spelling of 163045940428816 in words is "one hundred sixty-three trillion, forty-five billion, nine hundred forty million, four hundred twenty-eight thousand, eight hundred sixteen".