12456540622 has 8 divisors (see below), whose sum is σ = 18685366776. Its totient is φ = 6228085032.

The previous prime is 12456540599. The next prime is 12456540631. The reversal of 12456540622 is 22604565421.

It is a happy number.

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

It is a super-2 number, since 2×12456540622² (a number of 21 digits) contains 22 as substring.

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, 17668 + ... + 158824.

It is an arithmetic number, because the mean of its divisors is an integer number (2335670847).

Almost surely, 2^12456540622 is an apocalyptic number.

12456540622 is a deficient number, since it is larger than the sum of its proper divisors (6228826154).

12456540622 is a wasteful number, since it uses less digits than its factorization.

12456540622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185282.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 12456540622 in words is "twelve billion, four hundred fifty-six million, five hundred forty thousand, six hundred twenty-two".