12452276655 has 72 divisors (see below), whose sum is σ = 27039291552. Its totient is φ = 5254574976.

The previous prime is 12452276653. The next prime is 12452276689. The reversal of 12452276655 is 55667225421.

12452276655 is a `hidden beast` number, since 1 + 2 + 4 + 522 + 76 + 6 + 55 = 666.

It is not a de Polignac number, because 12452276655 - 2¹ = 12452276653 is a prime.

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 12452276655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12452276653) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 188539 + ... + 245868.

It is an arithmetic number, because the mean of its divisors is an integer number (375545716).

Almost surely, 2^12452276655 is an apocalyptic number.

12452276655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12452276655 is an abundant number, since it is smaller than the sum of its proper divisors (14587014897).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12452276655 is a wasteful number, since it uses less digits than its factorization.

12452276655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434445 (or 434435 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The spelling of 12452276655 in words is "twelve billion, four hundred fifty-two million, two hundred seventy-six thousand, six hundred fifty-five".