1601565606 has 12 divisors (see below), whose sum is σ = 3470058852. Its totient is φ = 533855196.

The previous prime is 1601565583. The next prime is 1601565619. The reversal of 1601565606 is 6065651061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44487916 + ... + 44487951.

It is an arithmetic number, because the mean of its divisors is an integer number (289171571).

Almost surely, 2^1601565606 is an apocalyptic number.

1601565606 is an abundant number, since it is smaller than the sum of its proper divisors (1868493246).

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

1601565606 is a wasteful number, since it uses less digits than its factorization.

1601565606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88975875 (or 88975872 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 1601565606 is about 40019.5652899928. The cubic root of 1601565606 is about 1169.9884592331.

The spelling of 1601565606 in words is "one billion, six hundred one million, five hundred sixty-five thousand, six hundred six".