1605166086 has 16 divisors (see below), whose sum is σ = 3246404400. Its totient is φ = 529043328.

The previous prime is 1605166063. The next prime is 1605166097. The reversal of 1605166086 is 6806615061.

1605166086 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 1502431 + ... + 1503498.

It is an arithmetic number, because the mean of its divisors is an integer number (202900275).

Almost surely, 2^1605166086 is an apocalyptic number.

1605166086 is an abundant number, since it is smaller than the sum of its proper divisors (1641238314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1605166086 is a wasteful number, since it uses less digits than its factorization.

1605166086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006023.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 1605166086 is about 40064.5240331144. The cubic root of 1605166086 is about 1170.8645534845.

The spelling of 1605166086 in words is "one billion, six hundred five million, one hundred sixty-six thousand, eighty-six".