12662089560 has 128 divisors (see below), whose sum is σ = 42273201600. Its totient is φ = 3371258880.

The previous prime is 12662089543. The next prime is 12662089597. The reversal of 12662089560 is 6598026621.

12662089560 is a `hidden beast` number, since 1 + 2 + 6 + 6 + 2 + 0 + 89 + 560 = 666.

12662089560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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 31 ways as a sum of consecutive naturals, for example, 705012 + ... + 722748.

Almost surely, 2^12662089560 is an apocalyptic number.

12662089560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12662089560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21136600800).

12662089560 is an abundant number, since it is smaller than the sum of its proper divisors (29611112040).

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

12662089560 is a wasteful number, since it uses less digits than its factorization.

12662089560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18418 (or 18408 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 12662089560 in words is "twelve billion, six hundred sixty-two million, eighty-nine thousand, five hundred sixty".