15233223220 has 12 divisors (see below), whose sum is σ = 31989768804. Its totient is φ = 6093289280.

The previous prime is 15233223217. The next prime is 15233223227. The reversal of 15233223220 is 2232233251.

15233223220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10690732816 + 4542490404 = 103396^2 + 67398^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15233223227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380830561 + ... + 380830600.

It is an arithmetic number, because the mean of its divisors is an integer number (2665814067).

Almost surely, 2^15233223220 is an apocalyptic number.

15233223220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15233223220 is an abundant number, since it is smaller than the sum of its proper divisors (16756545584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15233223220 is a wasteful number, since it uses less digits than its factorization.

15233223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761661170 (or 761661168 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 15233223220 its reverse (2232233251), we get a palindrome (17465456471).

The spelling of 15233223220 in words is "fifteen billion, two hundred thirty-three million, two hundred twenty-three thousand, two hundred twenty".