161632324616 has 16 divisors (see below), whose sum is σ = 346354981440. Its totient is φ = 69270996240.

The previous prime is 161632324597. The next prime is 161632324619. The reversal of 161632324616 is 616423236161.

It is a super-2 number, since 2×161632324616² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161632324619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443145700 + ... + 1443145811.

It is an arithmetic number, because the mean of its divisors is an integer number (21647186340).

Almost surely, 2^161632324616 is an apocalyptic number.

It is an amenable number.

161632324616 is an abundant number, since it is smaller than the sum of its proper divisors (184722656824).

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

161632324616 is a wasteful number, since it uses less digits than its factorization.

161632324616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886291524 (or 2886291520 counting only the distinct ones).

The product of its digits is 186624, while the sum is 41.

The spelling of 161632324616 in words is "one hundred sixty-one billion, six hundred thirty-two million, three hundred twenty-four thousand, six hundred sixteen".