15555312150 has 144 divisors (see below), whose sum is σ = 44991495360. Its totient is φ = 3546312000.

The previous prime is 15555312139. The next prime is 15555312151. The reversal of 15555312150 is 5121355551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15555312151) 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 71 ways as a sum of consecutive naturals, for example, 3077125 + ... + 3082175.

It is an arithmetic number, because the mean of its divisors is an integer number (312440940).

Almost surely, 2^15555312150 is an apocalyptic number.

15555312150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15555312150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22495747680).

15555312150 is an abundant number, since it is smaller than the sum of its proper divisors (29436183210).

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

15555312150 is a wasteful number, since it uses less digits than its factorization.

15555312150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5499 (or 5487 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 15555312150 in words is "fifteen billion, five hundred fifty-five million, three hundred twelve thousand, one hundred fifty".