163385040257 has 8 divisors (see below), whose sum is σ = 177019086816. Its totient is φ = 150198011712.

The previous prime is 163385040229. The next prime is 163385040283. The reversal of 163385040257 is 752040583361.

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

It is a cyclic number.

It is not a de Polignac number, because 163385040257 - 2¹⁸ = 163384778113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163385040557) 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, 111753743 + ... + 111755204.

It is an arithmetic number, because the mean of its divisors is an integer number (22127385852).

Almost surely, 2^163385040257 is an apocalyptic number.

163385040257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

163385040257 is a deficient number, since it is larger than the sum of its proper divisors (13634046559).

163385040257 is a wasteful number, since it uses less digits than its factorization.

163385040257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223509007.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 163385040257 in words is "one hundred sixty-three billion, three hundred eighty-five million, forty thousand, two hundred fifty-seven".