12055400432 has 10 divisors (see below), whose sum is σ = 23357338368. Its totient is φ = 6027700208.

The previous prime is 12055400431. The next prime is 12055400443. The reversal of 12055400432 is 23400455021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12055400431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 376731248 + ... + 376731279.

Almost surely, 2^12055400432 is an apocalyptic number.

It is an amenable number.

12055400432 is a deficient number, since it is larger than the sum of its proper divisors (11301937936).

12055400432 is an equidigital number, since it uses as much as digits as its factorization.

12055400432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753462535 (or 753462529 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 12055400432 its reverse (23400455021), we get a palindrome (35455855453).

The spelling of 12055400432 in words is "twelve billion, fifty-five million, four hundred thousand, four hundred thirty-two".