1320664472 has 8 divisors (see below), whose sum is σ = 2476245900. Its totient is φ = 660332232.

The previous prime is 1320664463. The next prime is 1320664481. The reversal of 1320664472 is 2744660231.

It is an interprime number because it is at equal distance from previous prime (1320664463) and next prime (1320664481).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82541522 + ... + 82541537.

Almost surely, 2^1320664472 is an apocalyptic number.

It is an amenable number.

1320664472 is a deficient number, since it is larger than the sum of its proper divisors (1155581428).

1320664472 is a wasteful number, since it uses less digits than its factorization.

1320664472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165083065 (or 165083061 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 1320664472 is about 36340.9475935892. The cubic root of 1320664472 is about 1097.1453452854.

The spelling of 1320664472 in words is "one billion, three hundred twenty million, six hundred sixty-four thousand, four hundred seventy-two".