1660010111 has 8 divisors (see below), whose sum is σ = 1685707200. Its totient is φ = 1634469760.

The previous prime is 1660010089. The next prime is 1660010113. The reversal of 1660010111 is 1110100661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1660010111 - 2²² = 1655815807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1660010111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660010113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17750 + ... + 60291.

It is an arithmetic number, because the mean of its divisors is an integer number (210713400).

Almost surely, 2^1660010111 is an apocalyptic number.

1660010111 is a deficient number, since it is larger than the sum of its proper divisors (25697089).

1660010111 is an equidigital number, since it uses as much as digits as its factorization.

1660010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78369.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 1660010111 is about 40743.2216571051. The cubic root of 1660010111 is about 1184.0505515362.

Adding to 1660010111 its reverse (1110100661), we get a palindrome (2770110772).

The spelling of 1660010111 in words is "one billion, six hundred sixty million, ten thousand, one hundred eleven".