164518660882 has 8 divisors (see below), whose sum is σ = 248030672076. Its totient is φ = 81841770192.

The previous prime is 164518660849. The next prime is 164518660883. The reversal of 164518660882 is 288066815461.

It is a Cunningham number, because it is equal to 405609²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 164518660881 + 1 = 405609^2 + 1^2 .

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

It is not an unprimeable number, because it can be changed into a prime (164518660883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208779633 + ... + 208780420.

Almost surely, 2^164518660882 is an apocalyptic number.

164518660882 is a deficient number, since it is larger than the sum of its proper divisors (83512011194).

164518660882 is a wasteful number, since it uses less digits than its factorization.

164518660882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417560252.

The product of its (nonzero) digits is 4423680, while the sum is 55.

The spelling of 164518660882 in words is "one hundred sixty-four billion, five hundred eighteen million, six hundred sixty thousand, eight hundred eighty-two".