1664867348 has 12 divisors (see below), whose sum is σ = 2915472000. Its totient is φ = 831875352.

The previous prime is 1664867339. The next prime is 1664867363. The reversal of 1664867348 is 8437684661.

It is a self number, because there is not a number n which added to its sum of digits gives 1664867348.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132836 + ... + 144827.

It is an arithmetic number, because the mean of its divisors is an integer number (242956000).

Almost surely, 2^1664867348 is an apocalyptic number.

It is an amenable number.

1664867348 is a deficient number, since it is larger than the sum of its proper divisors (1250604652).

1664867348 is a wasteful number, since it uses less digits than its factorization.

1664867348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279166 (or 279164 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 53.

The square root of 1664867348 is about 40802.7860323287. The cubic root of 1664867348 is about 1185.2042822285.

The spelling of 1664867348 in words is "one billion, six hundred sixty-four million, eight hundred sixty-seven thousand, three hundred forty-eight".