2660662679 has 2 divisors, whose sum is σ = 2660662680. Its totient is φ = 2660662678.

The previous prime is 2660662619. The next prime is 2660662717. The reversal of 2660662679 is 9762660662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2660662679 - 2¹⁶ = 2660597143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2660662619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330331339 + 1330331340.

It is an arithmetic number, because the mean of its divisors is an integer number (1330331340).

Almost surely, 2^2660662679 is an apocalyptic number.

2660662679 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660662679 is an equidigital number, since it uses as much as digits as its factorization.

2660662679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 50.

The square root of 2660662679 is about 51581.6118301862. The cubic root of 2660662679 is about 1385.6810335193.

The spelling of 2660662679 in words is "two billion, six hundred sixty million, six hundred sixty-two thousand, six hundred seventy-nine".