2661170371 has 2 divisors, whose sum is σ = 2661170372. Its totient is φ = 2661170370.

The previous prime is 2661170329. The next prime is 2661170483. The reversal of 2661170371 is 1730711662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2661170371 - 2²³ = 2652781763 is a prime.

It is not a weakly prime, because it can be changed into another prime (2661170671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330585185 + 1330585186.

It is an arithmetic number, because the mean of its divisors is an integer number (1330585186).

Almost surely, 2^2661170371 is an apocalyptic number.

2661170371 is a deficient number, since it is larger than the sum of its proper divisors (1).

2661170371 is an equidigital number, since it uses as much as digits as its factorization.

2661170371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 2661170371 is about 51586.5328453076. The cubic root of 2661170371 is about 1385.7691637483.

The spelling of 2661170371 in words is "two billion, six hundred sixty-one million, one hundred seventy thousand, three hundred seventy-one".