1666885017035 has 8 divisors (see below), whose sum is σ = 2286013737696. Its totient is φ = 1143006868800.

The previous prime is 1666885017029. The next prime is 1666885017131. The reversal of 1666885017035 is 5307105886661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1666885017035 - 2⁴ = 1666885017019 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23812643066 + ... + 23812643135.

It is an arithmetic number, because the mean of its divisors is an integer number (285751717212).

Almost surely, 2^{1666885017035} is an apocalyptic number.

1666885017035 is a deficient number, since it is larger than the sum of its proper divisors (619128720661).

1666885017035 is an equidigital number, since it uses as much as digits as its factorization.

1666885017035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47625286213.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 1666885017035 in words is "one trillion, six hundred sixty-six billion, eight hundred eighty-five million, seventeen thousand, thirty-five".