1215133552616 has 64 divisors (see below), whose sum is σ = 2520454855680. Its totient is φ = 547203824640.

The previous prime is 1215133552597. The next prime is 1215133552621. The reversal of 1215133552616 is 6162553315121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2667761 + ... + 3089856.

It is an arithmetic number, because the mean of its divisors is an integer number (39382107120).

Almost surely, 2^{1215133552616} is an apocalyptic number.

It is an amenable number.

1215133552616 is an abundant number, since it is smaller than the sum of its proper divisors (1305321303064).

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

1215133552616 is a wasteful number, since it uses less digits than its factorization.

1215133552616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5757714 (or 5757710 counting only the distinct ones).

The product of its digits is 162000, while the sum is 41.

Adding to 1215133552616 its reverse (6162553315121), we get a palindrome (7377686867737).

The spelling of 1215133552616 in words is "one trillion, two hundred fifteen billion, one hundred thirty-three million, five hundred fifty-two thousand, six hundred sixteen".