1664104245 has 64 divisors (see below), whose sum is σ = 2929893120. Its totient is φ = 802787328.

The previous prime is 1664104223. The next prime is 1664104283. The reversal of 1664104245 is 5424014661.

It is not a de Polignac number, because 1664104245 - 2⁵ = 1664104213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2269899 + ... + 2270631.

It is an arithmetic number, because the mean of its divisors is an integer number (45779580).

Almost surely, 2^1664104245 is an apocalyptic number.

1664104245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1664104245 is a deficient number, since it is larger than the sum of its proper divisors (1265788875).

1664104245 is a wasteful number, since it uses less digits than its factorization.

1664104245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 1664104245 is about 40793.4338466376. The cubic root of 1664104245 is about 1185.0231724714.

The spelling of 1664104245 in words is "one billion, six hundred sixty-four million, one hundred four thousand, two hundred forty-five".