10668771640 has 16 divisors (see below), whose sum is σ = 24004736280. Its totient is φ = 4267508640.

The previous prime is 10668771601. The next prime is 10668771647. The reversal of 10668771640 is 4617786601.

10668771640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10668771640² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10668771647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133359606 + ... + 133359685.

Almost surely, 2^10668771640 is an apocalyptic number.

10668771640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10668771640 is an abundant number, since it is smaller than the sum of its proper divisors (13335964640).

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

10668771640 is a wasteful number, since it uses less digits than its factorization.

10668771640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266719302 (or 266719298 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 10668771640 in words is "ten billion, six hundred sixty-eight million, seven hundred seventy-one thousand, six hundred forty".