1320472664 has 32 divisors (see below), whose sum is σ = 2851200000. Its totient is φ = 561593760.

The previous prime is 1320472663. The next prime is 1320472667. The reversal of 1320472664 is 4662740231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320472663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82664 + ... + 97335.

It is an arithmetic number, because the mean of its divisors is an integer number (89100000).

Almost surely, 2^1320472664 is an apocalyptic number.

1320472664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1320472664 is an abundant number, since it is smaller than the sum of its proper divisors (1530727336).

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

1320472664 is a wasteful number, since it uses less digits than its factorization.

1320472664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180143 (or 180139 counting only the distinct ones).

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

The square root of 1320472664 is about 36338.3084911777. The cubic root of 1320472664 is about 1097.0922277203.

The spelling of 1320472664 in words is "one billion, three hundred twenty million, four hundred seventy-two thousand, six hundred sixty-four".