1601480165 has 4 divisors (see below), whose sum is σ = 1921776204. Its totient is φ = 1281184128.

The previous prime is 1601480159. The next prime is 1601480197. The reversal of 1601480165 is 5610841061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 971319556 + 630160609 = 31166^2 + 25103^2 .

It is a cyclic number.

It is not a de Polignac number, because 1601480165 - 2¹⁰ = 1601479141 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 3 ways as a sum of consecutive naturals, for example, 160148012 + ... + 160148021.

It is an arithmetic number, because the mean of its divisors is an integer number (480444051).

Almost surely, 2^1601480165 is an apocalyptic number.

It is an amenable number.

1601480165 is a deficient number, since it is larger than the sum of its proper divisors (320296039).

1601480165 is an equidigital number, since it uses as much as digits as its factorization.

1601480165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320296038.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 1601480165 is about 40018.4977853992. The cubic root of 1601480165 is about 1169.9676531832.

The spelling of 1601480165 in words is "one billion, six hundred one million, four hundred eighty thousand, one hundred sixty-five".