2660945567 has 8 divisors (see below), whose sum is σ = 3041479296. Its totient is φ = 2280511512.

The previous prime is 2660945503. The next prime is 2660945591. The reversal of 2660945567 is 7655490662.

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

It is a cyclic number.

It is not a de Polignac number, because 2660945567 - 2⁶ = 2660945503 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 (2660945167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45608 + ... + 86034.

It is an arithmetic number, because the mean of its divisors is an integer number (380184912).

Almost surely, 2^2660945567 is an apocalyptic number.

2660945567 is a deficient number, since it is larger than the sum of its proper divisors (380533729).

2660945567 is an equidigital number, since it uses as much as digits as its factorization.

2660945567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49837.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The square root of 2660945567 is about 51584.3538972817. The cubic root of 2660945567 is about 1385.7301414160.

The spelling of 2660945567 in words is "two billion, six hundred sixty million, nine hundred forty-five thousand, five hundred sixty-seven".