2015150061144 has 128 divisors (see below), whose sum is σ = 5587934849280. Its totient is φ = 600428505600.

The previous prime is 2015150061137. The next prime is 2015150061157. The reversal of 2015150061144 is 4411600515102.

It is a congruent number.

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, 48887247 + ... + 48928449.

It is an arithmetic number, because the mean of its divisors is an integer number (43655741010).

Almost surely, 2^{2015150061144} is an apocalyptic number.

2015150061144 is a gapful number since it is divisible by the number (24) 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 2015150061144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2793967424640).

2015150061144 is an abundant number, since it is smaller than the sum of its proper divisors (3572784788136).

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

2015150061144 is a wasteful number, since it uses less digits than its factorization.

2015150061144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44321 (or 44317 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

Adding to 2015150061144 its reverse (4411600515102), we get a palindrome (6426750576246).

The spelling of 2015150061144 in words is "two trillion, fifteen billion, one hundred fifty million, sixty-one thousand, one hundred forty-four".