163231607306 has 16 divisors (see below), whose sum is σ = 253498661640. Its totient is φ = 78736680960.

The previous prime is 163231607303. The next prime is 163231607311. The reversal of 163231607306 is 603706132361.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 108576181081 + 54655426225 = 329509^2 + 233785^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 163231607306.

It is not an unprimeable number, because it can be changed into a prime (163231607303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1085675 + ... + 1226846.

Almost surely, 2^163231607306 is an apocalyptic number.

163231607306 is a deficient number, since it is larger than the sum of its proper divisors (90267054334).

163231607306 is a wasteful number, since it uses less digits than its factorization.

163231607306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313769.

The product of its (nonzero) digits is 81648, while the sum is 38.

Adding to 163231607306 its reverse (603706132361), we get a palindrome (766937739667).

The spelling of 163231607306 in words is "one hundred sixty-three billion, two hundred thirty-one million, six hundred seven thousand, three hundred six".