1366393716 has 36 divisors (see below), whose sum is σ = 3538185924. Its totient is φ = 444355200.

The previous prime is 1366393711. The next prime is 1366393733. The reversal of 1366393716 is 6173936631.

1366393716 is a `hidden beast` number, since 1 + 3 + 6 + 639 + 3 + 7 + 1 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 656384400 + 710009316 = 25620^2 + 26646^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366393711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 461395 + ... + 464346.

Almost surely, 2^1366393716 is an apocalyptic number.

It is an amenable number.

1366393716 is an abundant number, since it is smaller than the sum of its proper divisors (2171792208).

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

1366393716 is a wasteful number, since it uses less digits than its factorization.

1366393716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925792 (or 925787 counting only the distinct ones).

The product of its digits is 367416, while the sum is 45.

The square root of 1366393716 is about 36964.7631671028. The cubic root of 1366393716 is about 1109.6651631881.

The spelling of 1366393716 in words is "one billion, three hundred sixty-six million, three hundred ninety-three thousand, seven hundred sixteen".