12442065551 has 8 divisors (see below), whose sum is σ = 12521030400. Its totient is φ = 12363344280.

The previous prime is 12442065539. The next prime is 12442065569. The reversal of 12442065551 is 15556024421.

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

It is a cyclic number.

It is not a de Polignac number, because 12442065551 - 2¹⁰ = 12442064527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442065511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42140 + ... + 163278.

It is an arithmetic number, because the mean of its divisors is an integer number (1565128800).

Almost surely, 2^12442065551 is an apocalyptic number.

12442065551 is a deficient number, since it is larger than the sum of its proper divisors (78964849).

12442065551 is a wasteful number, since it uses less digits than its factorization.

12442065551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121789.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 12442065551 its reverse (15556024421), we get a palindrome (27998089972).

The spelling of 12442065551 in words is "twelve billion, four hundred forty-two million, sixty-five thousand, five hundred fifty-one".