161632308 has 12 divisors (see below), whose sum is σ = 377142080. Its totient is φ = 53877432.

The previous prime is 161632279. The next prime is 161632319. The reversal of 161632308 is 803236161.

161632308 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×161632308² = 52250005978813728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6734668 + ... + 6734691.

Almost surely, 2^161632308 is an apocalyptic number.

It is an amenable number.

161632308 is an abundant number, since it is smaller than the sum of its proper divisors (215509772).

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

161632308 is a wasteful number, since it uses less digits than its factorization.

161632308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13469366 (or 13469364 counting only the distinct ones).

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

The square root of 161632308 is about 12713.4695500481. The cubic root of 161632308 is about 544.7234328884.

Adding to 161632308 its reverse (803236161), we get a palindrome (964868469).

The spelling of 161632308 in words is "one hundred sixty-one million, six hundred thirty-two thousand, three hundred eight".