12055440651 has 8 divisors (see below), whose sum is σ = 16100404224. Its totient is φ = 8023718760.

The previous prime is 12055440623. The next prime is 12055440667. The reversal of 12055440651 is 15604455021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12055440651 - 2¹⁴ = 12055424267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12055450651) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3308295 + ... + 3311936.

It is an arithmetic number, because the mean of its divisors is an integer number (2012550528).

Almost surely, 2^12055440651 is an apocalyptic number.

12055440651 is a deficient number, since it is larger than the sum of its proper divisors (4044963573).

12055440651 is an equidigital number, since it uses as much as digits as its factorization.

12055440651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6620841.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 12055440651 its reverse (15604455021), we get a palindrome (27659895672).

The spelling of 12055440651 in words is "twelve billion, fifty-five million, four hundred forty thousand, six hundred fifty-one".