162640006 has 4 divisors (see below), whose sum is σ = 243960012. Its totient is φ = 81320002.

The previous prime is 162639991. The next prime is 162640007. The reversal of 162640006 is 600046261.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162640007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40660000 + ... + 40660003.

It is an arithmetic number, because the mean of its divisors is an integer number (60990003).

Almost surely, 2^162640006 is an apocalyptic number.

162640006 is a deficient number, since it is larger than the sum of its proper divisors (81320006).

162640006 is an equidigital number, since it uses as much as digits as its factorization.

162640006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81320005.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 162640006 is about 12753.0390887819. The cubic root of 162640006 is about 545.8531160840.

Adding to 162640006 its reverse (600046261), we get a palindrome (762686267).

The spelling of 162640006 in words is "one hundred sixty-two million, six hundred forty thousand, six".