162431616 has 64 divisors (see below), whose sum is σ = 434887200. Its totient is φ = 53713920.

The previous prime is 162431611. The next prime is 162431623. The reversal of 162431616 is 616134261.

It is a tau number, because it is divible by the number of its divisors (64).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (162431611) 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, 48690 + ... + 51918.

Almost surely, 2^162431616 is an apocalyptic number.

162431616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162431616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217443600).

162431616 is an abundant number, since it is smaller than the sum of its proper divisors (272455584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162431616 is a wasteful number, since it uses less digits than its factorization.

162431616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377 (or 3365 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 162431616 is about 12744.8662605772. The cubic root of 162431616 is about 545.6198832920.

Adding to 162431616 its reverse (616134261), we get a palindrome (778565877).

The spelling of 162431616 in words is "one hundred sixty-two million, four hundred thirty-one thousand, six hundred sixteen".