1366648704 has 192 divisors, whose sum is σ = 4116752640. Its totient is φ = 434746368.

The previous prime is 1366648639. The next prime is 1366648721. The reversal of 1366648704 is 4078466631.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a self number, because there is not a number n which added to its sum of digits gives 1366648704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2327899 + ... + 2328485.

It is an arithmetic number, because the mean of its divisors is an integer number (21441420).

Almost surely, 2^1366648704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1366648704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2058376320).

1366648704 is an abundant number, since it is smaller than the sum of its proper divisors (2750103936).

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

1366648704 is a wasteful number, since it uses less digits than its factorization.

1366648704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 1366648704 is about 36968.2120747001. The cubic root of 1366648704 is about 1109.7341851931.

The spelling of 1366648704 in words is "one billion, three hundred sixty-six million, six hundred forty-eight thousand, seven hundred four".