10140043664643 has 4 divisors (see below), whose sum is σ = 13520058219528. Its totient is φ = 6760029109760.

The previous prime is 10140043664629. The next prime is 10140043664651. The reversal of 10140043664643 is 34646634004101.

It is a happy number.

10140043664643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10140043664643 - 2⁶ = 10140043664579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10140043664595 and 10140043664604.

It is not an unprimeable number, because it can be changed into a prime (10140043664143) 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, 1690007277438 + ... + 1690007277443.

It is an arithmetic number, because the mean of its divisors is an integer number (3380014554882).

Almost surely, 2^{10140043664643} is an apocalyptic number.

10140043664643 is a deficient number, since it is larger than the sum of its proper divisors (3380014554885).

10140043664643 is an equidigital number, since it uses as much as digits as its factorization.

10140043664643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380014554884.

The product of its (nonzero) digits is 497664, while the sum is 42.

Adding to 10140043664643 its reverse (34646634004101), we get a palindrome (44786677668744).

The spelling of 10140043664643 in words is "ten trillion, one hundred forty billion, forty-three million, six hundred sixty-four thousand, six hundred forty-three".