1806486161 has 8 divisors (see below), whose sum is σ = 1906089600. Its totient is φ = 1707335280.

The previous prime is 1806486151. The next prime is 1806486163. The reversal of 1806486161 is 1616846081.

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

It is a cyclic number.

It is not a de Polignac number, because 1806486161 - 2¹⁰ = 1806485137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1806486163) 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, 104921 + ... + 120918.

It is an arithmetic number, because the mean of its divisors is an integer number (238261200).

Almost surely, 2^1806486161 is an apocalyptic number.

It is an amenable number.

1806486161 is a deficient number, since it is larger than the sum of its proper divisors (99603439).

1806486161 is a wasteful number, since it uses less digits than its factorization.

1806486161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226279.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 1806486161 is about 42502.7782738964. The cubic root of 1806486161 is about 1217.8997639603.

The spelling of 1806486161 in words is "one billion, eight hundred six million, four hundred eighty-six thousand, one hundred sixty-one".