1215260616775 has 6 divisors (see below), whose sum is σ = 1506923164832. Its totient is φ = 972208493400.

The previous prime is 1215260616733. The next prime is 1215260616797. The reversal of 1215260616775 is 5776160625121.

It is not a de Polignac number, because 1215260616775 - 2⁹ = 1215260616263 is a prime.

It is a super-2 number, since 2×1215260616775² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24305212311 + ... + 24305212360.

Almost surely, 2^{1215260616775} is an apocalyptic number.

1215260616775 is a deficient number, since it is larger than the sum of its proper divisors (291662548057).

1215260616775 is an equidigital number, since it uses as much as digits as its factorization.

1215260616775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48610424681 (or 48610424676 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 49.

The spelling of 1215260616775 in words is "one trillion, two hundred fifteen billion, two hundred sixty million, six hundred sixteen thousand, seven hundred seventy-five".