11452123566 has 48 divisors (see below), whose sum is σ = 26753270544. Its totient is φ = 3519556992.

The previous prime is 11452123549. The next prime is 11452123583. The reversal of 11452123566 is 66532125411.

11452123566 is a `hidden beast` number, since 11 + 45 + 21 + 23 + 566 = 666.

11452123566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11452123549) and next prime (11452123583).

It is a super-2 number, since 2×11452123566² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11452123566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171985 + ... + 229091.

It is an arithmetic number, because the mean of its divisors is an integer number (557359803).

Almost surely, 2^11452123566 is an apocalyptic number.

11452123566 is an abundant number, since it is smaller than the sum of its proper divisors (15301146978).

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

11452123566 is a wasteful number, since it uses less digits than its factorization.

11452123566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57985 (or 57982 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

Adding to 11452123566 its reverse (66532125411), we get a palindrome (77984248977).

The spelling of 11452123566 in words is "eleven billion, four hundred fifty-two million, one hundred twenty-three thousand, five hundred sixty-six".