161532452598 has 32 divisors (see below), whose sum is σ = 352491616512. Its totient is φ = 48941287200.

The previous prime is 161532452591. The next prime is 161532452611. The reversal of 161532452598 is 895254235161.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 161532452598.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161532452591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217968 + ... + 608748.

It is an arithmetic number, because the mean of its divisors is an integer number (11015363016).

Almost surely, 2^161532452598 is an apocalyptic number.

161532452598 is an abundant number, since it is smaller than the sum of its proper divisors (190959163914).

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

161532452598 is a wasteful number, since it uses less digits than its factorization.

161532452598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397060.

The product of its digits is 2592000, while the sum is 51.

The spelling of 161532452598 in words is "one hundred sixty-one billion, five hundred thirty-two million, four hundred fifty-two thousand, five hundred ninety-eight".