16945386768 has 60 divisors (see below), whose sum is σ = 48432578688. Its totient is φ = 5528280000.

The previous prime is 16945386763. The next prime is 16945386817. The reversal of 16945386768 is 86768354961.

16945386768 is a `hidden beast` number, since 1 + 6 + 94 + 538 + 6 + 7 + 6 + 8 = 666.

It is a super-2 number, since 2×16945386768² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16945386761) by changing a digit.

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, 1245108 + ... + 1258643.

Almost surely, 2^16945386768 is an apocalyptic number.

16945386768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16945386768 is an abundant number, since it is smaller than the sum of its proper divisors (31487191920).

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

16945386768 is a wasteful number, since it uses less digits than its factorization.

16945386768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503812 (or 2503803 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 16945386768 in words is "sixteen billion, nine hundred forty-five million, three hundred eighty-six thousand, seven hundred sixty-eight".