1321176606642 has 48 divisors (see below), whose sum is σ = 2887236955512. Its totient is φ = 436602562560.

The previous prime is 1321176606623. The next prime is 1321176606653. The reversal of 1321176606642 is 2466066711231.

1321176606642 is a `hidden beast` number, since 1 + 3 + 21 + 17 + 6 + 606 + 6 + 4 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1058859522081 + 262317084561 = 1029009^2 + 512169^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1524618 + ... + 2228634.

Almost surely, 2^{1321176606642} is an apocalyptic number.

1321176606642 is an abundant number, since it is smaller than the sum of its proper divisors (1566060348870).

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

1321176606642 is a wasteful number, since it uses less digits than its factorization.

1321176606642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704923 (or 704920 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 1321176606642 in words is "one trillion, three hundred twenty-one billion, one hundred seventy-six million, six hundred six thousand, six hundred forty-two".