15223154120 has 32 divisors (see below), whose sum is σ = 35048661120. Its totient is φ = 5947650240.

The previous prime is 15223154113. The next prime is 15223154123. The reversal of 15223154120 is 2145132251.

It is a super-2 number, since 2×15223154120² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15223154120.

It is not an unprimeable number, because it can be changed into a prime (15223154123) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4423616 + ... + 4427055.

It is an arithmetic number, because the mean of its divisors is an integer number (1095270660).

Almost surely, 2^15223154120 is an apocalyptic number.

15223154120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15223154120 is an abundant number, since it is smaller than the sum of its proper divisors (19825507000).

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

15223154120 is a wasteful number, since it uses less digits than its factorization.

15223154120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8850725 (or 8850721 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 15223154120 its reverse (2145132251), we get a palindrome (17368286371).

The spelling of 15223154120 in words is "fifteen billion, two hundred twenty-three million, one hundred fifty-four thousand, one hundred twenty".