6466581103 has 4 divisors (see below), whose sum is σ = 6548436640. Its totient is φ = 6384725568.

The previous prime is 6466581089. The next prime is 6466581113. The reversal of 6466581103 is 3011856646.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6466581103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466581113) 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, 40927650 + ... + 40927807.

It is an arithmetic number, because the mean of its divisors is an integer number (1637109160).

Almost surely, 2^6466581103 is an apocalyptic number.

6466581103 is a deficient number, since it is larger than the sum of its proper divisors (81855537).

6466581103 is an equidigital number, since it uses as much as digits as its factorization.

6466581103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81855536.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 6466581103 is about 80415.0552011251. The cubic root of 6466581103 is about 1863.0517119841.

The spelling of 6466581103 in words is "six billion, four hundred sixty-six million, five hundred eighty-one thousand, one hundred three".