1215516036364 has 24 divisors (see below), whose sum is σ = 2433772857600. Its totient is φ = 520348133136.

The previous prime is 1215516036353. The next prime is 1215516036373. The reversal of 1215516036364 is 4636306155121.

It is a self number, because there is not a number n which added to its sum of digits gives 1215516036364.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24446014 + ... + 24495685.

It is an arithmetic number, because the mean of its divisors is an integer number (101407202400).

Almost surely, 2^{1215516036364} is an apocalyptic number.

1215516036364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1215516036364 is an abundant number, since it is smaller than the sum of its proper divisors (1218256821236).

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

1215516036364 is a wasteful number, since it uses less digits than its factorization.

1215516036364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48942597 (or 48942595 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 1215516036364 in words is "one trillion, two hundred fifteen billion, five hundred sixteen million, thirty-six thousand, three hundred sixty-four".