12356284455 has 16 divisors (see below), whose sum is σ = 21966728160. Its totient is φ = 6590018304.

The previous prime is 12356284439. The next prime is 12356284469. The reversal of 12356284455 is 55448265321.

12356284455 is a `hidden beast` number, since 1 + 2 + 3 + 562 + 84 + 4 + 5 + 5 = 666.

It is not a de Polignac number, because 12356284455 - 2⁴ = 12356284439 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12356284455.

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, 45763882 + ... + 45764151.

It is an arithmetic number, because the mean of its divisors is an integer number (1372920510).

Almost surely, 2^12356284455 is an apocalyptic number.

12356284455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12356284455 is a deficient number, since it is larger than the sum of its proper divisors (9610443705).

12356284455 is an equidigital number, since it uses as much as digits as its factorization.

12356284455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91528047 (or 91528041 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

The spelling of 12356284455 in words is "twelve billion, three hundred fifty-six million, two hundred eighty-four thousand, four hundred fifty-five".