20502723063 has 16 divisors (see below), whose sum is σ = 27631860480. Its totient is φ = 13521167616.

The previous prime is 20502723047. The next prime is 20502723071. The reversal of 20502723063 is 36032720502.

It is not a de Polignac number, because 20502723063 - 2⁴ = 20502723047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20502723063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20502723023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644158 + ... + 675236.

It is an arithmetic number, because the mean of its divisors is an integer number (1726991280).

Almost surely, 2^20502723063 is an apocalyptic number.

20502723063 is a deficient number, since it is larger than the sum of its proper divisors (7129137417).

20502723063 is a wasteful number, since it uses less digits than its factorization.

20502723063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33446.

The product of its (nonzero) digits is 15120, while the sum is 30.

The spelling of 20502723063 in words is "twenty billion, five hundred two million, seven hundred twenty-three thousand, sixty-three".