10351665643 has 4 divisors (see below), whose sum is σ = 11292726168. Its totient is φ = 9410605120.

The previous prime is 10351665593. The next prime is 10351665661. The reversal of 10351665643 is 34656615301.

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 10351665643 - 2¹³ = 10351657451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10351665596 and 10351665605.

It is not an unprimeable number, because it can be changed into a prime (10351660643) 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, 470530246 + ... + 470530267.

It is an arithmetic number, because the mean of its divisors is an integer number (2823181542).

Almost surely, 2^10351665643 is an apocalyptic number.

10351665643 is a deficient number, since it is larger than the sum of its proper divisors (941060525).

10351665643 is an equidigital number, since it uses as much as digits as its factorization.

10351665643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941060524.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 10351665643 in words is "ten billion, three hundred fifty-one million, six hundred sixty-five thousand, six hundred forty-three".