1766338816 has 36 divisors (see below), whose sum is σ = 3846309264. Its totient is φ = 802880000.

The previous prime is 1766338813. The next prime is 1766338841. The reversal of 1766338816 is 6188336671.

It is a self number, because there is not a number n which added to its sum of digits gives 1766338816.

It is not an unprimeable number, because it can be changed into a prime (1766338813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310810 + ... + 316441.

It is an arithmetic number, because the mean of its divisors is an integer number (106841924).

Almost surely, 2^1766338816 is an apocalyptic number.

1766338816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1766338816 is an abundant number, since it is smaller than the sum of its proper divisors (2079970448).

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

1766338816 is an equidigital number, since it uses as much as digits as its factorization.

1766338816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627278 (or 627264 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

The square root of 1766338816 is about 42027.8338247405. The cubic root of 1766338816 is about 1208.8098891891.

The spelling of 1766338816 in words is "one billion, seven hundred sixty-six million, three hundred thirty-eight thousand, eight hundred sixteen".