1666759113 has 24 divisors (see below), whose sum is σ = 2577259776. Its totient is φ = 1075323600.

The previous prime is 1666759111. The next prime is 1666759123. The reversal of 1666759113 is 3119576661.

It is not a de Polignac number, because 1666759113 - 2¹ = 1666759111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1666759111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103098 + ... + 118163.

It is an arithmetic number, because the mean of its divisors is an integer number (107385824).

Almost surely, 2^1666759113 is an apocalyptic number.

It is an amenable number.

1666759113 is a deficient number, since it is larger than the sum of its proper divisors (910500663).

1666759113 is an equidigital number, since it uses as much as digits as its factorization.

1666759113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221307 (or 221295 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 1666759113 is about 40825.9612624124. The cubic root of 1666759113 is about 1185.6530225410.

The spelling of 1666759113 in words is "one billion, six hundred sixty-six million, seven hundred fifty-nine thousand, one hundred thirteen".