1610440161 has 16 divisors (see below), whose sum is σ = 2348498880. Its totient is φ = 973507520.

The previous prime is 1610440159. The next prime is 1610440193.

1610440161 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 1610440161 - 2¹ = 1610440159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1610440121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49890 + ... + 75563.

It is an arithmetic number, because the mean of its divisors is an integer number (146781180).

Almost surely, 2^1610440161 is an apocalyptic number.

1610440161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1610440161 is a deficient number, since it is larger than the sum of its proper divisors (738058719).

1610440161 is a wasteful number, since it uses less digits than its factorization.

1610440161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125856.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1610440161 is about 40130.2898195366. The cubic root of 1610440161 is about 1172.1455167759.

It can be divided in two parts, 16104 and 40161, that added together give a palindrome (56265).

The spelling of 1610440161 in words is "one billion, six hundred ten million, four hundred forty thousand, one hundred sixty-one".