10813066640 has 20 divisors (see below), whose sum is σ = 25140380124. Its totient is φ = 4325226624.

The previous prime is 10813066637. The next prime is 10813066669. The reversal of 10813066640 is 4666031801.

It can be written as a sum of positive squares in 2 ways, for example, as 3830124544 + 6982942096 = 61888^2 + 83564^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×10813066640² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 10813066640.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 67581587 + ... + 67581746.

Almost surely, 2^10813066640 is an apocalyptic number.

10813066640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10813066640 is an abundant number, since it is smaller than the sum of its proper divisors (14327313484).

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

10813066640 is a wasteful number, since it uses less digits than its factorization.

10813066640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135163346 (or 135163340 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 10813066640 in words is "ten billion, eight hundred thirteen million, sixty-six thousand, six hundred forty".