162720004 has 6 divisors (see below), whose sum is σ = 284760014. Its totient is φ = 81360000.

The previous prime is 162719987. The next prime is 162720059. The reversal of 162720004 is 400027261.

It can be written as a sum of positive squares in only one way, i.e., 145926400 + 16793604 = 12080^2 + 4098^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20339997 + ... + 20340004.

Almost surely, 2^162720004 is an apocalyptic number.

It is an amenable number.

162720004 is a deficient number, since it is larger than the sum of its proper divisors (122040010).

162720004 is a wasteful number, since it uses less digits than its factorization.

162720004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40680005 (or 40680003 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 162720004 is about 12756.1751320684. The cubic root of 162720004 is about 545.9425979630.

Adding to 162720004 its reverse (400027261), we get a palindrome (562747265).

The spelling of 162720004 in words is "one hundred sixty-two million, seven hundred twenty thousand, four".