1601032611 has 4 divisors (see below), whose sum is σ = 2134710152. Its totient is φ = 1067355072.

The previous prime is 1601032591. The next prime is 1601032619. The reversal of 1601032611 is 1162301061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1162301061 = 3 ⋅387433687.

It is not a de Polignac number, because 1601032611 - 2⁷ = 1601032483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1601032619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266838766 + ... + 266838771.

It is an arithmetic number, because the mean of its divisors is an integer number (533677538).

Almost surely, 2^1601032611 is an apocalyptic number.

1601032611 is a deficient number, since it is larger than the sum of its proper divisors (533677541).

1601032611 is an equidigital number, since it uses as much as digits as its factorization.

1601032611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533677540.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1601032611 is about 40012.9055555829. The cubic root of 1601032611 is about 1169.8586555821.

Adding to 1601032611 its reverse (1162301061), we get a palindrome (2763333672).

The spelling of 1601032611 in words is "one billion, six hundred one million, thirty-two thousand, six hundred eleven".