15601224223 has 4 divisors (see below), whose sum is σ = 16801318408. Its totient is φ = 14401130040.

The previous prime is 15601224217. The next prime is 15601224239. The reversal of 15601224223 is 32242210651.

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

It is a cyclic number.

It is not a de Polignac number, because 15601224223 - 2³³ = 7011289631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15601224191 and 15601224200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15601824223) 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, 600047073 + ... + 600047098.

It is an arithmetic number, because the mean of its divisors is an integer number (4200329602).

Almost surely, 2^15601224223 is an apocalyptic number.

15601224223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

15601224223 is a deficient number, since it is larger than the sum of its proper divisors (1200094185).

15601224223 is a wasteful number, since it uses less digits than its factorization.

15601224223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200094184.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 15601224223 its reverse (32242210651), we get a palindrome (47843434874).

The spelling of 15601224223 in words is "fifteen billion, six hundred one million, two hundred twenty-four thousand, two hundred twenty-three".