1215045355255 has 8 divisors (see below), whose sum is σ = 1463206563792. Its totient is φ = 968601525888.

The previous prime is 1215045355243. The next prime is 1215045355289. The reversal of 1215045355255 is 5525535405121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1215045355255 - 2³³ = 1206455420663 is a prime.

It is a super-2 number, since 2×1215045355255² (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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429343234 + ... + 429346063.

It is an arithmetic number, because the mean of its divisors is an integer number (182900820474).

Almost surely, 2^{1215045355255} is an apocalyptic number.

1215045355255 is a deficient number, since it is larger than the sum of its proper divisors (248161208537).

1215045355255 is an equidigital number, since it uses as much as digits as its factorization.

1215045355255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858689585.

The product of its (nonzero) digits is 750000, while the sum is 43.

The spelling of 1215045355255 in words is "one trillion, two hundred fifteen billion, forty-five million, three hundred fifty-five thousand, two hundred fifty-five".