20732605223 has 8 divisors (see below), whose sum is σ = 22954961280. Its totient is φ = 18566511480.

The previous prime is 20732605217. The next prime is 20732605241. The reversal of 20732605223 is 32250623702.

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

It is not a de Polignac number, because 20732605223 - 2⁸ = 20732604967 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 20732605223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20732605253) 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, 14064803 + ... + 14066276.

It is an arithmetic number, because the mean of its divisors is an integer number (2869370160).

Almost surely, 2^20732605223 is an apocalyptic number.

20732605223 is a deficient number, since it is larger than the sum of its proper divisors (2222356057).

20732605223 is a wasteful number, since it uses less digits than its factorization.

20732605223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28131157.

The product of its (nonzero) digits is 30240, while the sum is 32.

The spelling of 20732605223 in words is "twenty billion, seven hundred thirty-two million, six hundred five thousand, two hundred twenty-three".