12455167939345 has 4 divisors (see below), whose sum is σ = 14946201527220. Its totient is φ = 9964134351472.

The previous prime is 12455167939321. The next prime is 12455167939363. The reversal of 12455167939345 is 54393976155421.

It is a Cunningham number, because it is equal to 3529188²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4483857070144 + 7971310869201 = 2117512^2 + 2823351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12455167939345 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 1245516793930 + ... + 1245516793939.

It is an arithmetic number, because the mean of its divisors is an integer number (3736550381805).

Almost surely, 2^{12455167939345} is an apocalyptic number.

It is an amenable number.

12455167939345 is a deficient number, since it is larger than the sum of its proper divisors (2491033587875).

12455167939345 is an equidigital number, since it uses as much as digits as its factorization.

12455167939345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491033587874.

The product of its digits is 122472000, while the sum is 64.

The spelling of 12455167939345 in words is "twelve trillion, four hundred fifty-five billion, one hundred sixty-seven million, nine hundred thirty-nine thousand, three hundred forty-five".