6613007961 has 8 divisors (see below), whose sum is σ = 10076964544. Its totient is φ = 3778861680.

The previous prime is 6613007923. The next prime is 6613007977. The reversal of 6613007961 is 1697003166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6613007961 - 2²³ = 6604619353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6613007981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157452550 + ... + 157452591.

It is an arithmetic number, because the mean of its divisors is an integer number (1259620568).

Almost surely, 2^6613007961 is an apocalyptic number.

It is an amenable number.

6613007961 is a deficient number, since it is larger than the sum of its proper divisors (3463956583).

6613007961 is a wasteful number, since it uses less digits than its factorization.

6613007961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314905151.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 6613007961 is about 81320.4031040181. The cubic root of 6613007961 is about 1877.0089719060.

The spelling of 6613007961 in words is "six billion, six hundred thirteen million, seven thousand, nine hundred sixty-one".