12695469552 has 200 divisors, whose sum is σ = 38790441360. Its totient is φ = 3997486080.

The previous prime is 12695469539. The next prime is 12695469581. The reversal of 12695469552 is 25596459621.

12695469552 is a `hidden beast` number, since 1 + 2 + 6 + 9 + 546 + 95 + 5 + 2 = 666.

It is a super-2 number, since 2×12695469552² (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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13321108 + ... + 13322060.

Almost surely, 2^12695469552 is an apocalyptic number.

12695469552 is a gapful number since it is divisible by the number (12) 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 12695469552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19395220680).

12695469552 is an abundant number, since it is smaller than the sum of its proper divisors (26094971808).

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

12695469552 is a wasteful number, since it uses less digits than its factorization.

12695469552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533 (or 1518 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 54.

The spelling of 12695469552 in words is "twelve billion, six hundred ninety-five million, four hundred sixty-nine thousand, five hundred fifty-two".