1326410646553 has 8 divisors (see below), whose sum is σ = 1431807595200. Its totient is φ = 1224990941328.

The previous prime is 1326410646511. The next prime is 1326410646619. The reversal of 1326410646553 is 3556460146231.

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 1326410646553 - 2²⁵ = 1326377092121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1326410641553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994310163 + ... + 994311496.

It is an arithmetic number, because the mean of its divisors is an integer number (178975949400).

Almost surely, 2^{1326410646553} is an apocalyptic number.

It is an amenable number.

1326410646553 is a deficient number, since it is larger than the sum of its proper divisors (105396948647).

1326410646553 is a wasteful number, since it uses less digits than its factorization.

1326410646553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988621711.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 1326410646553 in words is "one trillion, three hundred twenty-six billion, four hundred ten million, six hundred forty-six thousand, five hundred fifty-three".