1215412053152 has 72 divisors (see below), whose sum is σ = 2784863979828. Its totient is φ = 519962347520.

The previous prime is 1215412053131. The next prime is 1215412053161. The reversal of 1215412053152 is 2513502145121.

It can be written as a sum of positive squares in 2 ways, for example, as 1212033653776 + 3378399376 = 1100924^2 + 58124^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

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 11 ways as a sum of consecutive naturals, for example, 9166463 + ... + 9298110.

Almost surely, 2^{1215412053152} is an apocalyptic number.

It is an amenable number.

1215412053152 is an abundant number, since it is smaller than the sum of its proper divisors (1569451926676).

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

1215412053152 is a wasteful number, since it uses less digits than its factorization.

1215412053152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18464622 (or 18464603 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 1215412053152 its reverse (2513502145121), we get a palindrome (3728914198273).

The spelling of 1215412053152 in words is "one trillion, two hundred fifteen billion, four hundred twelve million, fifty-three thousand, one hundred fifty-two".