1515066111552 has 224 divisors, whose sum is σ = 4630172811264. Its totient is φ = 428269363200.

The previous prime is 1515066111539. The next prime is 1515066111553. The reversal of 1515066111552 is 2551116605151.

It is a tau number, because it is divible by the number of its divisors (224).

It is a self number, because there is not a number n which added to its sum of digits gives 1515066111552.

It is not an unprimeable number, because it can be changed into a prime (1515066111553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86710177 + ... + 86727647.

It is an arithmetic number, because the mean of its divisors is an integer number (20670414336).

Almost surely, 2^{1515066111552} is an apocalyptic number.

1515066111552 is a gapful number since it is divisible by the number (12) 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 1515066111552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2315086405632).

1515066111552 is an abundant number, since it is smaller than the sum of its proper divisors (3115106699712).

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

1515066111552 is a wasteful number, since it uses less digits than its factorization.

1515066111552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18177 (or 18167 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 39.

The spelling of 1515066111552 in words is "one trillion, five hundred fifteen billion, sixty-six million, one hundred eleven thousand, five hundred fifty-two".