12665445142 has 8 divisors (see below), whose sum is σ = 21712191696. Its totient is φ = 5428047912.

The previous prime is 12665445137. The next prime is 12665445193. The reversal of 12665445142 is 24154456621.

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

It is a super-2 number, since 2×12665445142² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12665445095 and 12665445104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452337313 + ... + 452337340.

It is an arithmetic number, because the mean of its divisors is an integer number (2714023962).

Almost surely, 2^12665445142 is an apocalyptic number.

12665445142 is a deficient number, since it is larger than the sum of its proper divisors (9046746554).

12665445142 is an equidigital number, since it uses as much as digits as its factorization.

12665445142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904674662.

The product of its digits is 230400, while the sum is 40.

The spelling of 12665445142 in words is "twelve billion, six hundred sixty-five million, four hundred forty-five thousand, one hundred forty-two".