1601105436 has 72 divisors (see below), whose sum is σ = 4633574400. Its totient is φ = 456651936.

The previous prime is 1601105413. The next prime is 1601105459. The reversal of 1601105436 is 6345011061.

1601105436 is a `hidden beast` number, since 1 + 6 + 0 + 110 + 543 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (1601105413) and next prime (1601105459).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145645 + ... + 156251.

It is an arithmetic number, because the mean of its divisors is an integer number (64355200).

Almost surely, 2^1601105436 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 1601105436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2316787200).

1601105436 is an abundant number, since it is smaller than the sum of its proper divisors (3032468964).

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

1601105436 is a wasteful number, since it uses less digits than its factorization.

1601105436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11223 (or 11218 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1601105436 is about 40013.8155641273. The cubic root of 1601105436 is about 1169.8763928150.

Adding to 1601105436 its reverse (6345011061), we get a palindrome (7946116497).

The spelling of 1601105436 in words is "one billion, six hundred one million, one hundred five thousand, four hundred thirty-six".