1648564868806 has 8 divisors (see below), whose sum is σ = 2472881520384. Its totient is φ = 824271028680.

The previous prime is 1648564868777. The next prime is 1648564868809. The reversal of 1648564868806 is 6088684658461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1648564868806² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648564868809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5521030 + ... + 5811961.

It is an arithmetic number, because the mean of its divisors is an integer number (309110190048).

Almost surely, 2^{1648564868806} is an apocalyptic number.

1648564868806 is a deficient number, since it is larger than the sum of its proper divisors (824316651578).

1648564868806 is a wasteful number, since it uses less digits than its factorization.

1648564868806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11405726.

The product of its (nonzero) digits is 424673280, while the sum is 70.

The spelling of 1648564868806 in words is "one trillion, six hundred forty-eight billion, five hundred sixty-four million, eight hundred sixty-eight thousand, eight hundred six".