1660207104 has 210 divisors, whose sum is σ = 5014006340. Its totient is φ = 549421056.

The previous prime is 1660207103. The next prime is 1660207111. The reversal of 1660207104 is 4017020661.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1660207103) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 11943867 + ... + 11944005.

Almost surely, 2^1660207104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1660207104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2507003170).

1660207104 is an abundant number, since it is smaller than the sum of its proper divisors (3353799236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1660207104 is an frugal number, since it uses more digits than its factorization.

1660207104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1660207104 is about 40745.6390795383. The cubic root of 1660207104 is about 1184.0973866815.

Adding to 1660207104 its reverse (4017020661), we get a palindrome (5677227765).

The spelling of 1660207104 in words is "one billion, six hundred sixty million, two hundred seven thousand, one hundred four".