163645210415 has 8 divisors (see below), whose sum is σ = 197098882368. Its totient is φ = 130433081760.

The previous prime is 163645210397. The next prime is 163645210429. The reversal of 163645210415 is 514012546361.

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

It is not a de Polignac number, because 163645210415 - 2²⁶ = 163578101551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60384332 + ... + 60387041.

It is an arithmetic number, because the mean of its divisors is an integer number (24637360296).

Almost surely, 2^163645210415 is an apocalyptic number.

163645210415 is a deficient number, since it is larger than the sum of its proper divisors (33453671953).

163645210415 is a wasteful number, since it uses less digits than its factorization.

163645210415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120771649.

The product of its (nonzero) digits is 86400, while the sum is 38.

Adding to 163645210415 its reverse (514012546361), we get a palindrome (677657756776).

The spelling of 163645210415 in words is "one hundred sixty-three billion, six hundred forty-five million, two hundred ten thousand, four hundred fifteen".