6671620611 has 6 divisors (see below), whose sum is σ = 9636785340. Its totient is φ = 4447747068.

The previous prime is 6671620601. The next prime is 6671620633. The reversal of 6671620611 is 1160261766.

6671620611 is a `hidden beast` number, since 6 + 6 + 7 + 16 + 20 + 611 = 666.

It is not a de Polignac number, because 6671620611 - 2¹³ = 6671612419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6671620601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370645581 + ... + 370645598.

It is an arithmetic number, because the mean of its divisors is an integer number (1606130890).

Almost surely, 2^6671620611 is an apocalyptic number.

6671620611 is a deficient number, since it is larger than the sum of its proper divisors (2965164729).

6671620611 is a wasteful number, since it uses less digits than its factorization.

6671620611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741291185 (or 741291182 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 6671620611 is about 81679.9890487260. The cubic root of 6671620611 is about 1882.5381263475.

The spelling of 6671620611 in words is "six billion, six hundred seventy-one million, six hundred twenty thousand, six hundred eleven".