162455665 has 4 divisors (see below), whose sum is σ = 194946804. Its totient is φ = 129964528.

The previous prime is 162455663. The next prime is 162455687. The reversal of 162455665 is 566554261.

162455665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 39955041 + 122500624 = 6321^2 + 11068^2 .

It is a cyclic number.

It is not a de Polignac number, because 162455665 - 2¹ = 162455663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162455663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16245562 + ... + 16245571.

It is an arithmetic number, because the mean of its divisors is an integer number (48736701).

Almost surely, 2^162455665 is an apocalyptic number.

It is an amenable number.

162455665 is a deficient number, since it is larger than the sum of its proper divisors (32491139).

162455665 is an equidigital number, since it uses as much as digits as its factorization.

162455665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32491138.

The product of its digits is 216000, while the sum is 40.

The square root of 162455665 is about 12745.8097035849. The cubic root of 162455665 is about 545.6468094233.

The spelling of 162455665 in words is "one hundred sixty-two million, four hundred fifty-five thousand, six hundred sixty-five".