12344566698 has 56 divisors (see below), whose sum is σ = 27787439556. Its totient is φ = 4111171200.

The previous prime is 12344566681. The next prime is 12344566723. The reversal of 12344566698 is 89666544321.

It can be written as a sum of positive squares in 2 ways, for example, as 9770729409 + 2573837289 = 98847^2 + 50733^2 .

It is a super-2 number, since 2×12344566698² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1981228 + ... + 1987448.

Almost surely, 2^12344566698 is an apocalyptic number.

12344566698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12344566698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13893719778).

12344566698 is an abundant number, since it is smaller than the sum of its proper divisors (15442872858).

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

12344566698 is an equidigital number, since it uses as much as digits as its factorization.

12344566698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7602 (or 7587 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 12344566698 in words is "twelve billion, three hundred forty-four million, five hundred sixty-six thousand, six hundred ninety-eight".