1320661612 has 6 divisors (see below), whose sum is σ = 2311157828. Its totient is φ = 660330804.

The previous prime is 1320661591. The next prime is 1320661631. The reversal of 1320661612 is 2161660231.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165082698 + ... + 165082705.

Almost surely, 2^1320661612 is an apocalyptic number.

It is an amenable number.

1320661612 is a deficient number, since it is larger than the sum of its proper divisors (990496216).

1320661612 is a wasteful number, since it uses less digits than its factorization.

1320661612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330165407 (or 330165405 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1320661612 is about 36340.9082440161. The cubic root of 1320661612 is about 1097.1445533008.

The spelling of 1320661612 in words is "one billion, three hundred twenty million, six hundred sixty-one thousand, six hundred twelve".