1316802816 has 108 divisors (see below), whose sum is σ = 4339101312. Its totient is φ = 376224768.

The previous prime is 1316802761. The next prime is 1316802853. The reversal of 1316802816 is 6182086131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24696 + ... + 56951.

It is an arithmetic number, because the mean of its divisors is an integer number (40176864).

Almost surely, 2^1316802816 is an apocalyptic number.

1316802816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1316802816 is an abundant number, since it is smaller than the sum of its proper divisors (3022298496).

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

1316802816 is an equidigital number, since it uses as much as digits as its factorization.

1316802816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81676 (or 81659 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1316802816 is about 36287.7777770973. Note that the first 6 decimals coincide. The cubic root of 1316802816 is about 1096.0749411523.

Adding to 1316802816 its reverse (6182086131), we get a palindrome (7498888947).

The spelling of 1316802816 in words is "one billion, three hundred sixteen million, eight hundred two thousand, eight hundred sixteen".