12355202040 has 64 divisors (see below), whose sum is σ = 37927612800. Its totient is φ = 3218097792.

The previous prime is 12355202017. The next prime is 12355202051. The reversal of 12355202040 is 4020255321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12355202040.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1192050 + ... + 1202369.

It is an arithmetic number, because the mean of its divisors is an integer number (592618950).

Almost surely, 2^12355202040 is an apocalyptic number.

12355202040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12355202040 is an abundant number, since it is smaller than the sum of its proper divisors (25572410760).

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

12355202040 is a wasteful number, since it uses less digits than its factorization.

12355202040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394476 (or 2394472 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 12355202040 its reverse (4020255321), we get a palindrome (16375457361).

The spelling of 12355202040 in words is "twelve billion, three hundred fifty-five million, two hundred two thousand, forty".