15140261220 has 96 divisors (see below), whose sum is σ = 48573907200. Its totient is φ = 3451697664.

The previous prime is 15140261189. The next prime is 15140261243. The reversal of 15140261220 is 2216204151.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117046 + ... + 209714.

It is an arithmetic number, because the mean of its divisors is an integer number (505978200).

Almost surely, 2^15140261220 is an apocalyptic number.

15140261220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15140261220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24286953600).

15140261220 is an abundant number, since it is smaller than the sum of its proper divisors (33433645980).

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

15140261220 is a wasteful number, since it uses less digits than its factorization.

15140261220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93077 (or 93075 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 15140261220 its reverse (2216204151), we get a palindrome (17356465371).

The spelling of 15140261220 in words is "fifteen billion, one hundred forty million, two hundred sixty-one thousand, two hundred twenty".