2666511941 has 2 divisors, whose sum is σ = 2666511942. Its totient is φ = 2666511940.

The previous prime is 2666511937. The next prime is 2666511949. The reversal of 2666511941 is 1491156662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2008384225 + 658127716 = 44815^2 + 25654^2 .

It is a cyclic number.

It is not a de Polignac number, because 2666511941 - 2² = 2666511937 is a prime.

It is a super-2 number, since 2×2666511941² = 14220571862991174962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2666511949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333255970 + 1333255971.

It is an arithmetic number, because the mean of its divisors is an integer number (1333255971).

Almost surely, 2^2666511941 is an apocalyptic number.

It is an amenable number.

2666511941 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666511941 is an equidigital number, since it uses as much as digits as its factorization.

2666511941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 41.

The square root of 2666511941 is about 51638.2798028749. The cubic root of 2666511941 is about 1386.6957279862.

The spelling of 2666511941 in words is "two billion, six hundred sixty-six million, five hundred eleven thousand, nine hundred forty-one".