1215115322552 has 16 divisors (see below), whose sum is σ = 2291983994160. Its totient is φ = 603919590784.

The previous prime is 1215115322537. The next prime is 1215115322569. The reversal of 1215115322552 is 2552235115121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454757393 + ... + 454760064.

It is an arithmetic number, because the mean of its divisors is an integer number (143248999635).

Almost surely, 2^{1215115322552} is an apocalyptic number.

It is an amenable number.

1215115322552 is a deficient number, since it is larger than the sum of its proper divisors (1076868671608).

1215115322552 is a wasteful number, since it uses less digits than its factorization.

1215115322552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909517630 (or 909517626 counting only the distinct ones).

The product of its digits is 30000, while the sum is 35.

The spelling of 1215115322552 in words is "one trillion, two hundred fifteen billion, one hundred fifteen million, three hundred twenty-two thousand, five hundred fifty-two".