6610662643 has 12 divisors (see below), whose sum is σ = 7176216168. Its totient is φ = 6086870400.

The previous prime is 6610662637. The next prime is 6610662649. The reversal of 6610662643 is 3462660166.

It is an interprime number because it is at equal distance from previous prime (6610662637) and next prime (6610662649).

It is a de Polignac number, because none of the positive numbers 2^k-6610662643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6610662596 and 6610662605.

It is not an unprimeable number, because it can be changed into a prime (6610662649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18996 + ... + 116542.

It is an arithmetic number, because the mean of its divisors is an integer number (598018014).

Almost surely, 2^6610662643 is an apocalyptic number.

6610662643 is a deficient number, since it is larger than the sum of its proper divisors (565553525).

6610662643 is a wasteful number, since it uses less digits than its factorization.

6610662643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97974 (or 97961 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 6610662643 is about 81305.9815942222. The cubic root of 6610662643 is about 1876.7870505317.

The spelling of 6610662643 in words is "six billion, six hundred ten million, six hundred sixty-two thousand, six hundred forty-three".