1601466605 has 16 divisors (see below), whose sum is σ = 1960855344. Its totient is φ = 1255372800.

The previous prime is 1601466553. The next prime is 1601466619. The reversal of 1601466605 is 5066641061.

It can be written as a sum of positive squares in 8 ways, for example, as 23629321 + 1577837284 = 4861^2 + 39722^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1601466605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 32639 + ... + 65331.

It is an arithmetic number, because the mean of its divisors is an integer number (122553459).

Almost surely, 2^1601466605 is an apocalyptic number.

It is an amenable number.

1601466605 is a deficient number, since it is larger than the sum of its proper divisors (359388739).

1601466605 is a wasteful number, since it uses less digits than its factorization.

1601466605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32896.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1601466605 is about 40018.3283633887. The cubic root of 1601466605 is about 1169.9643510701.

The spelling of 1601466605 in words is "one billion, six hundred one million, four hundred sixty-six thousand, six hundred five".