32181157136 has 10 divisors (see below), whose sum is σ = 62350991982. Its totient is φ = 16090578560.

The previous prime is 32181157123. The next prime is 32181157153. The reversal of 32181157136 is 63175118123.

It can be written as a sum of positive squares in only one way, i.e., 25065222400 + 7115934736 = 158320^2 + 84356^2 .

It is a super-2 number, since 2×32181157136² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 32181157136.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1005661145 + ... + 1005661176.

Almost surely, 2^32181157136 is an apocalyptic number.

It is an amenable number.

32181157136 is a deficient number, since it is larger than the sum of its proper divisors (30169834846).

32181157136 is a wasteful number, since it uses less digits than its factorization.

32181157136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011322329 (or 2011322323 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The spelling of 32181157136 in words is "thirty-two billion, one hundred eighty-one million, one hundred fifty-seven thousand, one hundred thirty-six".