2660655331 has 2 divisors, whose sum is σ = 2660655332. Its totient is φ = 2660655330.

The previous prime is 2660655281. The next prime is 2660655337. The reversal of 2660655331 is 1335560662.

2660655331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2660655331 - 2¹³ = 2660647139 is a prime.

It is a super-2 number, since 2×2660655331² = 14158173580757439122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2660655337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330327665 + 1330327666.

It is an arithmetic number, because the mean of its divisors is an integer number (1330327666).

Almost surely, 2^2660655331 is an apocalyptic number.

2660655331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660655331 is an equidigital number, since it uses as much as digits as its factorization.

2660655331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 2660655331 is about 51581.5406032042. The cubic root of 2660655331 is about 1385.6797578980.

The spelling of 2660655331 in words is "two billion, six hundred sixty million, six hundred fifty-five thousand, three hundred thirty-one".