1365361668 has 36 divisors (see below), whose sum is σ = 3765089328. Its totient is φ = 413745840.

The previous prime is 1365361667. The next prime is 1365361687. The reversal of 1365361668 is 8661635631.

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

It is not an unprimeable number, because it can be changed into a prime (1365361663) 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, 1723546 + ... + 1724337.

Almost surely, 2^1365361668 is an apocalyptic number.

1365361668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1365361668 is an abundant number, since it is smaller than the sum of its proper divisors (2399727660).

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

1365361668 is a wasteful number, since it uses less digits than its factorization.

1365361668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3447904 (or 3447899 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 1365361668 is about 36950.8006408522. The cubic root of 1365361668 is about 1109.3857131894.

The spelling of 1365361668 in words is "one billion, three hundred sixty-five million, three hundred sixty-one thousand, six hundred sixty-eight".