12235566690 has 48 divisors (see below), whose sum is σ = 31854022200. Its totient is φ = 3258556416.

The previous prime is 12235566677. The next prime is 12235566727. The reversal of 12235566690 is 9666553221.

It can be written as a sum of positive squares in 4 ways, for example, as 6999162921 + 5236403769 = 83661^2 + 72363^2 .

It is a super-2 number, since 2×12235566690² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19185 + ... + 157604.

Almost surely, 2^12235566690 is an apocalyptic number.

12235566690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12235566690 is an abundant number, since it is smaller than the sum of its proper divisors (19618455510).

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

12235566690 is a wasteful number, since it uses less digits than its factorization.

12235566690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177571 (or 177568 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 12235566690 in words is "twelve billion, two hundred thirty-five million, five hundred sixty-six thousand, six hundred ninety".