1215094660025 has 6 divisors (see below), whose sum is σ = 1506717378462. Its totient is φ = 972075728000.

The previous prime is 1215094659811. The next prime is 1215094660063. The reversal of 1215094660025 is 5200664905121.

It can be written as a sum of positive squares in 3 ways, for example, as 122841838144 + 1092252821881 = 350488^2 + 1045109^2 .

It is not a de Polignac number, because 1215094660025 - 2¹⁰ = 1215094659001 is a prime.

It is a Duffinian number.

It is a Curzon 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, 24301893176 + ... + 24301893225.

It is an arithmetic number, because the mean of its divisors is an integer number (251119563077).

Almost surely, 2^{1215094660025} is an apocalyptic number.

It is an amenable number.

1215094660025 is a deficient number, since it is larger than the sum of its proper divisors (291622718437).

1215094660025 is an equidigital number, since it uses as much as digits as its factorization.

1215094660025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48603786411 (or 48603786406 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 1215094660025 in words is "one trillion, two hundred fifteen billion, ninety-four million, six hundred sixty thousand, twenty-five".