6650065043 has 4 divisors (see below), whose sum is σ = 6657302160. Its totient is φ = 6642827928.

The previous prime is 6650065031. The next prime is 6650065057. The reversal of 6650065043 is 3405600566.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3405600566 = 2 ⋅1702800283.

It is a cyclic number.

It is not a de Polignac number, because 6650065043 - 2¹⁰ = 6650064019 is a prime.

It is a super-2 number, since 2×6650065043² = 88446730152261183698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6650064994 and 6650065012.

It is not an unprimeable number, because it can be changed into a prime (6650065073) 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, 3617180 + ... + 3619017.

It is an arithmetic number, because the mean of its divisors is an integer number (1664325540).

Almost surely, 2^6650065043 is an apocalyptic number.

6650065043 is a deficient number, since it is larger than the sum of its proper divisors (7237117).

6650065043 is an equidigital number, since it uses as much as digits as its factorization.

6650065043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7237116.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 6650065043 is about 81547.9309547459. The cubic root of 6650065043 is about 1880.5084865511.

The spelling of 6650065043 in words is "six billion, six hundred fifty million, sixty-five thousand, forty-three".