161528577200 has 60 divisors (see below), whose sum is σ = 388111305120. Its totient is φ = 64604954880.

The previous prime is 161528577181. The next prime is 161528577209. The reversal of 161528577200 is 2775825161.

It is not an unprimeable number, because it can be changed into a prime (161528577209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7124282 + ... + 7146918.

It is an arithmetic number, because the mean of its divisors is an integer number (6468521752).

Almost surely, 2^161528577200 is an apocalyptic number.

161528577200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161528577200 is an abundant number, since it is smaller than the sum of its proper divisors (226582727920).

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

161528577200 is a wasteful number, since it uses less digits than its factorization.

161528577200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40494 (or 40483 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 44.

The spelling of 161528577200 in words is "one hundred sixty-one billion, five hundred twenty-eight million, five hundred seventy-seven thousand, two hundred".