32197921161 has 8 divisors (see below), whose sum is σ = 49063498944. Its totient is φ = 18398812080.

The previous prime is 32197921121. The next prime is 32197921169. The reversal of 32197921161 is 16112979123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 32197921161 - 2⁹ = 32197920649 is a prime.

It is a super-2 number, since 2×32197921161² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32197921169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766617150 + ... + 766617191.

It is an arithmetic number, because the mean of its divisors is an integer number (6132937368).

Almost surely, 2^32197921161 is an apocalyptic number.

It is an amenable number.

32197921161 is a deficient number, since it is larger than the sum of its proper divisors (16865577783).

32197921161 is a wasteful number, since it uses less digits than its factorization.

32197921161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533234351.

The product of its digits is 40824, while the sum is 42.

The spelling of 32197921161 in words is "thirty-two billion, one hundred ninety-seven million, nine hundred twenty-one thousand, one hundred sixty-one".