1326340422564 has 24 divisors (see below), whose sum is σ = 3170277108768. Its totient is φ = 431330218560.

The previous prime is 1326340422557. The next prime is 1326340422581. The reversal of 1326340422564 is 4652240436231.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1347906442 + ... + 1347907425.

It is an arithmetic number, because the mean of its divisors is an integer number (132094879532).

Almost surely, 2^{1326340422564} is an apocalyptic number.

It is an amenable number.

1326340422564 is an abundant number, since it is smaller than the sum of its proper divisors (1843936686204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1326340422564 is a wasteful number, since it uses less digits than its factorization.

1326340422564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695813915 (or 2695813913 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

Adding to 1326340422564 its reverse (4652240436231), we get a palindrome (5978580858795).

The spelling of 1326340422564 in words is "one trillion, three hundred twenty-six billion, three hundred forty million, four hundred twenty-two thousand, five hundred sixty-four".