1368065856 has 56 divisors (see below), whose sum is σ = 3623482720. Its totient is φ = 455542272.

The previous prime is 1368065851. The next prime is 1368065857. The reversal of 1368065856 is 6585608631.

It is a super-3 number, since 3×1368065856³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368065851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211275 + ... + 217653.

Almost surely, 2^1368065856 is an apocalyptic number.

1368065856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1368065856 is an abundant number, since it is smaller than the sum of its proper divisors (2255416864).

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

1368065856 is a wasteful number, since it uses less digits than its factorization.

1368065856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7511 (or 7501 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The square root of 1368065856 is about 36987.3742782588. The cubic root of 1368065856 is about 1110.1176338281.

The spelling of 1368065856 in words is "one billion, three hundred sixty-eight million, sixty-five thousand, eight hundred fifty-six".