1515144220050 has 96 divisors (see below), whose sum is σ = 3774492792000. Its totient is φ = 402221295360.

The previous prime is 1515144220043. The next prime is 1515144220061. The reversal of 1515144220050 is 500224415151.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32381272 + ... + 32428028.

It is an arithmetic number, because the mean of its divisors is an integer number (39317633250).

Almost surely, 2^{1515144220050} is an apocalyptic number.

1515144220050 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 1515144220050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1887246396000).

1515144220050 is an abundant number, since it is smaller than the sum of its proper divisors (2259348571950).

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

1515144220050 is a wasteful number, since it uses less digits than its factorization.

1515144220050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47740 (or 47735 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 1515144220050 in words is "one trillion, five hundred fifteen billion, one hundred forty-four million, two hundred twenty thousand, fifty".