162617043631 has 4 divisors (see below), whose sum is σ = 185848049872. Its totient is φ = 139386037392.

The previous prime is 162617043629. The next prime is 162617043683. The reversal of 162617043631 is 136340716261.

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

It is not a de Polignac number, because 162617043631 - 2¹ = 162617043629 is a prime.

It is a super-2 number, since 2×162617043631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162617043731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11615503110 + ... + 11615503123.

It is an arithmetic number, because the mean of its divisors is an integer number (46462012468).

Almost surely, 2^162617043631 is an apocalyptic number.

162617043631 is a deficient number, since it is larger than the sum of its proper divisors (23231006241).

162617043631 is an equidigital number, since it uses as much as digits as its factorization.

162617043631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23231006240.

The product of its (nonzero) digits is 108864, while the sum is 40.

Adding to 162617043631 its reverse (136340716261), we get a palindrome (298957759892).

The spelling of 162617043631 in words is "one hundred sixty-two billion, six hundred seventeen million, forty-three thousand, six hundred thirty-one".