1321555213162 has 8 divisors (see below), whose sum is σ = 1983284498016. Its totient is φ = 660460380492.

The previous prime is 1321555213117. The next prime is 1321555213169. The reversal of 1321555213162 is 2613125551231.

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

It is not an unprimeable number, because it can be changed into a prime (1321555213169) 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, 158607838 + ... + 158616169.

It is an arithmetic number, because the mean of its divisors is an integer number (247910562252).

Almost surely, 2^{1321555213162} is an apocalyptic number.

1321555213162 is a deficient number, since it is larger than the sum of its proper divisors (661729284854).

1321555213162 is a wasteful number, since it uses less digits than its factorization.

1321555213162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317226092.

The product of its digits is 54000, while the sum is 37.

The spelling of 1321555213162 in words is "one trillion, three hundred twenty-one billion, five hundred fifty-five million, two hundred thirteen thousand, one hundred sixty-two".