1660885875 has 48 divisors (see below), whose sum is σ = 3266231904. Its totient is φ = 805272000.

The previous prime is 1660885861. The next prime is 1660885901. The reversal of 1660885875 is 5785880661.

It is not a de Polignac number, because 1660885875 - 2⁵ = 1660885843 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54732 + ... + 79481.

It is an arithmetic number, because the mean of its divisors is an integer number (68046498).

Almost surely, 2^1660885875 is an apocalyptic number.

1660885875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1660885875 is a deficient number, since it is larger than the sum of its proper divisors (1605346029).

1660885875 is a wasteful number, since it uses less digits than its factorization.

1660885875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134245 (or 134232 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The square root of 1660885875 is about 40753.9675982597. The cubic root of 1660885875 is about 1184.2587363219.

The spelling of 1660885875 in words is "one billion, six hundred sixty million, eight hundred eighty-five thousand, eight hundred seventy-five".