161353528200 has 96 divisors (see below), whose sum is σ = 555773282400. Its totient is φ = 43027606080.

The previous prime is 161353528181. The next prime is 161353528223. The reversal of 161353528200 is 2825353161.

161353528200 is a `hidden beast` number, since 1 + 61 + 3 + 53 + 528 + 20 + 0 = 666.

It is a super-3 number, since 3×161353528200³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14934742 + ... + 14945541.

It is an arithmetic number, because the mean of its divisors is an integer number (5789305025).

Almost surely, 2^161353528200 is an apocalyptic number.

161353528200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161353528200 is an abundant number, since it is smaller than the sum of its proper divisors (394419754200).

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

161353528200 is a wasteful number, since it uses less digits than its factorization.

161353528200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29880308 (or 29880293 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 161353528200 in words is "one hundred sixty-one billion, three hundred fifty-three million, five hundred twenty-eight thousand, two hundred".