1556342436422 has 8 divisors (see below), whose sum is σ = 2334548268696. Its totient is φ = 778159680192.

The previous prime is 1556342436359. The next prime is 1556342436427. The reversal of 1556342436422 is 2246342436551.

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

It is a super-2 number, since 2×1556342436422² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1556342436427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5599403 + ... + 5870774.

It is an arithmetic number, because the mean of its divisors is an integer number (291818533587).

Almost surely, 2^{1556342436422} is an apocalyptic number.

1556342436422 is a deficient number, since it is larger than the sum of its proper divisors (778205832274).

1556342436422 is a wasteful number, since it uses less digits than its factorization.

1556342436422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11538022.

The product of its digits is 4147200, while the sum is 47.

The spelling of 1556342436422 in words is "one trillion, five hundred fifty-six billion, three hundred forty-two million, four hundred thirty-six thousand, four hundred twenty-two".