21560163230 has 8 divisors (see below), whose sum is σ = 38808293832. Its totient is φ = 8624065288.

The previous prime is 21560163217. The next prime is 21560163259. The reversal of 21560163230 is 3236106512.

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

It is a junction number, because it is equal to n+sod(n) for n = 21560163193 and 21560163202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1078008152 + ... + 1078008171.

It is an arithmetic number, because the mean of its divisors is an integer number (4851036729).

Almost surely, 2^21560163230 is an apocalyptic number.

21560163230 is a deficient number, since it is larger than the sum of its proper divisors (17248130602).

21560163230 is a wasteful number, since it uses less digits than its factorization.

21560163230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156016330.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 21560163230 its reverse (3236106512), we get a palindrome (24796269742).

The spelling of 21560163230 in words is "twenty-one billion, five hundred sixty million, one hundred sixty-three thousand, two hundred thirty".