1215516036416 has 112 divisors (see below), whose sum is σ = 2759933958912. Its totient is φ = 526136371200.

The previous prime is 1215516036373. The next prime is 1215516036433. The reversal of 1215516036416 is 6146306155121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 727826 + ... + 1720686.

Almost surely, 2^{1215516036416} is an apocalyptic number.

1215516036416 is a gapful number since it is divisible by the number (16) 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 1215516036416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1379966979456).

1215516036416 is an abundant number, since it is smaller than the sum of its proper divisors (1544417922496).

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

1215516036416 is a wasteful number, since it uses less digits than its factorization.

1215516036416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992968 (or 992958 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 1215516036416 in words is "one trillion, two hundred fifteen billion, five hundred sixteen million, thirty-six thousand, four hundred sixteen".