12455344502215 has 16 divisors (see below), whose sum is σ = 15794284929120. Its totient is φ = 9403109130240.

The previous prime is 12455344502197. The next prime is 12455344502233. The reversal of 12455344502215 is 51220544355421.

It is an interprime number because it is at equal distance from previous prime (12455344502197) and next prime (12455344502233).

It is not a de Polignac number, because 12455344502215 - 2¹⁹ = 12455343977927 is a prime.

It is a super-2 number, since 2×12455344502215² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255051246 + ... + 255100075.

It is an arithmetic number, because the mean of its divisors is an integer number (987142808070).

Almost surely, 2^{12455344502215} is an apocalyptic number.

12455344502215 is a deficient number, since it is larger than the sum of its proper divisors (3338940426905).

12455344502215 is a wasteful number, since it uses less digits than its factorization.

12455344502215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510151602.

The product of its (nonzero) digits is 960000, while the sum is 43.

Adding to 12455344502215 its reverse (51220544355421), we get a palindrome (63675888857636).

The spelling of 12455344502215 in words is "twelve trillion, four hundred fifty-five billion, three hundred forty-four million, five hundred two thousand, two hundred fifteen".