1641165592 has 64 divisors (see below), whose sum is σ = 3429273600. Its totient is φ = 736164000.

The previous prime is 1641165583. The next prime is 1641165611. The reversal of 1641165592 is 2955611461.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840217 + ... + 842167.

It is an arithmetic number, because the mean of its divisors is an integer number (53582400).

Almost surely, 2^1641165592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1641165592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1714636800).

1641165592 is an abundant number, since it is smaller than the sum of its proper divisors (1788108008).

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

1641165592 is a wasteful number, since it uses less digits than its factorization.

1641165592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069 (or 2043 counting only the distinct ones).

The product of its digits is 64800, while the sum is 40.

The square root of 1641165592 is about 40511.3020279526. The cubic root of 1641165592 is about 1179.5530223202.

The spelling of 1641165592 in words is "one billion, six hundred forty-one million, one hundred sixty-five thousand, five hundred ninety-two".