1345664712 has 64 divisors (see below), whose sum is σ = 3849897600. Its totient is φ = 383961600.

The previous prime is 1345664707. The next prime is 1345664773. The reversal of 1345664712 is 2174665431.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130962 + ... + 140862.

It is an arithmetic number, because the mean of its divisors is an integer number (60154650).

Almost surely, 2^1345664712 is an apocalyptic number.

1345664712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1345664712 is an abundant number, since it is smaller than the sum of its proper divisors (2504232888).

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

1345664712 is a wasteful number, since it uses less digits than its factorization.

1345664712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10726 (or 10722 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 1345664712 is about 36683.3029047276. The cubic root of 1345664712 is about 1104.0251188887.

The spelling of 1345664712 in words is "one billion, three hundred forty-five million, six hundred sixty-four thousand, seven hundred twelve".