1365163044 has 24 divisors (see below), whose sum is σ = 3640435008. Its totient is φ = 390046560.

The previous prime is 1365163039. The next prime is 1365163069. The reversal of 1365163044 is 4403615631.

It is a junction number, because it is equal to n+sod(n) for n = 1365162996 and 1365163014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8125887 + ... + 8126054.

It is an arithmetic number, because the mean of its divisors is an integer number (151684792).

Almost surely, 2^1365163044 is an apocalyptic number.

1365163044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1365163044 is an abundant number, since it is smaller than the sum of its proper divisors (2275271964).

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

1365163044 is a wasteful number, since it uses less digits than its factorization.

1365163044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16251955 (or 16251953 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1365163044 is about 36948.1128611462. The cubic root of 1365163044 is about 1109.3319151570.

Adding to 1365163044 its reverse (4403615631), we get a palindrome (5768778675).

The spelling of 1365163044 in words is "one billion, three hundred sixty-five million, one hundred sixty-three thousand, forty-four".