1664512104 has 16 divisors (see below), whose sum is σ = 4161280320. Its totient is φ = 554837360.

The previous prime is 1664512079. The next prime is 1664512123. The reversal of 1664512104 is 4012154661.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34677312 + ... + 34677359.

It is an arithmetic number, because the mean of its divisors is an integer number (260080020).

Almost surely, 2^1664512104 is an apocalyptic number.

It is an amenable number.

1664512104 is an abundant number, since it is smaller than the sum of its proper divisors (2496768216).

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

1664512104 is a wasteful number, since it uses less digits than its factorization.

1664512104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69354680 (or 69354676 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1664512104 is about 40798.4326169523. The cubic root of 1664512104 is about 1185.1199778823.

Adding to 1664512104 its reverse (4012154661), we get a palindrome (5676666765).

The spelling of 1664512104 in words is "one billion, six hundred sixty-four million, five hundred twelve thousand, one hundred four".