1322253663642 has 12 divisors (see below), whose sum is σ = 2864882937930. Its totient is φ = 440751221208.

The previous prime is 1322253663623. The next prime is 1322253663677. The reversal of 1322253663642 is 2463663522231.

It is a happy number.

1322253663642 is a `hidden beast` number, since 1 + 3 + 2 + 2 + 2 + 5 + 3 + 6 + 636 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1303207179561 + 19046484081 = 1141581^2 + 138009^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36729268417 + ... + 36729268452.

Almost surely, 2^{1322253663642} is an apocalyptic number.

1322253663642 is an abundant number, since it is smaller than the sum of its proper divisors (1542629274288).

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

1322253663642 is a wasteful number, since it uses less digits than its factorization.

1322253663642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73458536877 (or 73458536874 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 45.

The spelling of 1322253663642 in words is "one trillion, three hundred twenty-two billion, two hundred fifty-three million, six hundred sixty-three thousand, six hundred forty-two".