163020558307 has 4 divisors (see below), whose sum is σ = 163031051440. Its totient is φ = 163010065176.

The previous prime is 163020558247. The next prime is 163020558317. The reversal of 163020558307 is 703855020361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163020558307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163020558307.

It is not an unprimeable number, because it can be changed into a prime (163020558317) 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, 5223228 + ... + 5254345.

It is an arithmetic number, because the mean of its divisors is an integer number (40757762860).

Almost surely, 2^163020558307 is an apocalyptic number.

163020558307 is a deficient number, since it is larger than the sum of its proper divisors (10493133).

163020558307 is a wasteful number, since it uses less digits than its factorization.

163020558307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10493132.

The product of its (nonzero) digits is 151200, while the sum is 40.

Adding to 163020558307 its reverse (703855020361), we get a palindrome (866875578668).

The spelling of 163020558307 in words is "one hundred sixty-three billion, twenty million, five hundred fifty-eight thousand, three hundred seven".