10661304443 has 2 divisors, whose sum is σ = 10661304444. Its totient is φ = 10661304442.

The previous prime is 10661304439. The next prime is 10661304461. The reversal of 10661304443 is 34440316601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10661304443 - 2² = 10661304439 is a prime.

It is a super-2 number, since 2×10661304443² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10661304403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5330652221 + 5330652222.

It is an arithmetic number, because the mean of its divisors is an integer number (5330652222).

Almost surely, 2^10661304443 is an apocalyptic number.

10661304443 is a deficient number, since it is larger than the sum of its proper divisors (1).

10661304443 is an equidigital number, since it uses as much as digits as its factorization.

10661304443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 10661304443 in words is "ten billion, six hundred sixty-one million, three hundred four thousand, four hundred forty-three".