162643604 has 6 divisors (see below), whose sum is σ = 284626314. Its totient is φ = 81321800.

The previous prime is 162643549. The next prime is 162643627. The reversal of 162643604 is 406346261.

It can be written as a sum of positive squares in only one way, i.e., 148596100 + 14047504 = 12190^2 + 3748^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20330447 + ... + 20330454.

It is an arithmetic number, because the mean of its divisors is an integer number (47437719).

Almost surely, 2^162643604 is an apocalyptic number.

It is an amenable number.

162643604 is a deficient number, since it is larger than the sum of its proper divisors (121982710).

162643604 is a wasteful number, since it uses less digits than its factorization.

162643604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40660905 (or 40660903 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 162643604 is about 12753.1801524169. The cubic root of 162643604 is about 545.8571412622.

Adding to 162643604 its reverse (406346261), we get a palindrome (568989865).

The spelling of 162643604 in words is "one hundred sixty-two million, six hundred forty-three thousand, six hundred four".