20157300163 has 32 divisors (see below), whose sum is σ = 28656391680. Its totient is φ = 13645877760.

The previous prime is 20157300161. The next prime is 20157300167. The reversal of 20157300163 is 36100375102.

It is a cyclic number.

It is not a de Polignac number, because 20157300163 - 2¹ = 20157300161 is a prime.

It is a super-2 number, since 2×20157300163² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20157300161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 575253 + ... + 609286.

It is an arithmetic number, because the mean of its divisors is an integer number (895512240).

Almost surely, 2^20157300163 is an apocalyptic number.

20157300163 is a deficient number, since it is larger than the sum of its proper divisors (8499091517).

20157300163 is a wasteful number, since it uses less digits than its factorization.

20157300163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184587.

The product of its (nonzero) digits is 3780, while the sum is 28.

Adding to 20157300163 its reverse (36100375102), we get a palindrome (56257675265).

The spelling of 20157300163 in words is "twenty billion, one hundred fifty-seven million, three hundred thousand, one hundred sixty-three".