1670161859 has 8 divisors (see below), whose sum is σ = 1798996992. Its totient is φ = 1546011720.

The previous prime is 1670161853. The next prime is 1670161861. The reversal of 1670161859 is 9581610761.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1670161859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1670161853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1170509 + ... + 1171934.

It is an arithmetic number, because the mean of its divisors is an integer number (224874624).

Almost surely, 2^1670161859 is an apocalyptic number.

1670161859 is a deficient number, since it is larger than the sum of its proper divisors (128835133).

1670161859 is a wasteful number, since it uses less digits than its factorization.

1670161859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342497.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 1670161859 is about 40867.6138158322. The cubic root of 1670161859 is about 1186.4593245537.

The spelling of 1670161859 in words is "one billion, six hundred seventy million, one hundred sixty-one thousand, eight hundred fifty-nine".