1365635308816 has 45 divisors (see below), whose sum is σ = 2661212124741. Its totient is φ = 678893482176.

The previous prime is 1365635308799. The next prime is 1365635308831. The reversal of 1365635308816 is 6188035365631.

The square root of 1365635308816 is 1168604.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1338047427600 + 27587881216 = 1156740^2 + 166096^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 920859211 + ... + 920860693.

Almost surely, 2^{1365635308816} is an apocalyptic number.

1365635308816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1365635308816 is the 1168604-th square number.

It is an amenable number.

1365635308816 is a deficient number, since it is larger than the sum of its proper divisors (1295576815925).

1365635308816 is an frugal number, since it uses more digits than its factorization.

1365635308816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368 (or 1682 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 55.

The spelling of 1365635308816 in words is "one trillion, three hundred sixty-five billion, six hundred thirty-five million, three hundred eight thousand, eight hundred sixteen".