1670201706985 has 16 divisors (see below), whose sum is σ = 2290583851776. Its totient is φ = 1145270415168.

The previous prime is 1670201706949. The next prime is 1670201707073. The reversal of 1670201706985 is 5896071020761.

It is a cyclic number.

It is not a de Polignac number, because 1670201706985 - 2¹¹ = 1670201704937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5959924 + ... + 6233866.

It is an arithmetic number, because the mean of its divisors is an integer number (143161490736).

Almost surely, 2^{1670201706985} is an apocalyptic number.

It is an amenable number.

1670201706985 is a deficient number, since it is larger than the sum of its proper divisors (620382144791).

1670201706985 is a wasteful number, since it uses less digits than its factorization.

1670201706985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448152.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 1670201706985 in words is "one trillion, six hundred seventy billion, two hundred one million, seven hundred six thousand, nine hundred eighty-five".