1660102111 has 8 divisors (see below), whose sum is σ = 1729672704. Its totient is φ = 1591532760.

The previous prime is 1660102099. The next prime is 1660102121. The reversal of 1660102111 is 1112010661.

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 1660102111 - 2⁵ = 1660102079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660102121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246925 + ... + 253558.

It is an arithmetic number, because the mean of its divisors is an integer number (216209088).

Almost surely, 2^1660102111 is an apocalyptic number.

1660102111 is a deficient number, since it is larger than the sum of its proper divisors (69570593).

1660102111 is a wasteful number, since it uses less digits than its factorization.

1660102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500621.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1660102111 is about 40744.3506636196. The cubic root of 1660102111 is about 1184.0724250251.

Adding to 1660102111 its reverse (1112010661), we get a palindrome (2772112772).

The spelling of 1660102111 in words is "one billion, six hundred sixty million, one hundred two thousand, one hundred eleven".