161795504598 has 64 divisors (see below), whose sum is σ = 403307304960. Its totient is φ = 42131187072.

The previous prime is 161795504597. The next prime is 161795504627. The reversal of 161795504598 is 895405597161.

It is a happy number.

It is a super-3 number, since 3×161795504598³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161795504597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1832365 + ... + 1918632.

It is an arithmetic number, because the mean of its divisors is an integer number (6301676640).

Almost surely, 2^161795504598 is an apocalyptic number.

161795504598 is an abundant number, since it is smaller than the sum of its proper divisors (241511800362).

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

161795504598 is a wasteful number, since it uses less digits than its factorization.

161795504598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3751101.

The product of its (nonzero) digits is 13608000, while the sum is 60.

The spelling of 161795504598 in words is "one hundred sixty-one billion, seven hundred ninety-five million, five hundred four thousand, five hundred ninety-eight".