1660293145 has 16 divisors (see below), whose sum is σ = 2293361280. Its totient is φ = 1130292864.

The previous prime is 1660293137. The next prime is 1660293161. The reversal of 1660293145 is 5413920661.

It is a cyclic number.

It is not a de Polignac number, because 1660293145 - 2³ = 1660293137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165772 + ... + 175501.

It is an arithmetic number, because the mean of its divisors is an integer number (143335080).

Almost surely, 2^1660293145 is an apocalyptic number.

It is an amenable number.

1660293145 is a deficient number, since it is larger than the sum of its proper divisors (633068135).

1660293145 is a wasteful number, since it uses less digits than its factorization.

1660293145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341424.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1660293145 is about 40746.6948966416. The cubic root of 1660293145 is about 1184.1178417928.

The spelling of 1660293145 in words is "one billion, six hundred sixty million, two hundred ninety-three thousand, one hundred forty-five".