165210340060404 has 72 divisors (see below), whose sum is σ = 417936543024000. Its totient is φ = 55027720972224.

The previous prime is 165210340060397. The next prime is 165210340060427. The reversal of 165210340060404 is 404060043012561.

165210340060404 is a `hidden beast` number, since 1 + 6 + 5 + 2 + 1 + 0 + 3 + 40 + 0 + 604 + 0 + 4 = 666.

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

It is a congruent number.

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, 787965817 + ... + 788175455.

Almost surely, 2^{165210340060404} is an apocalyptic number.

It is an amenable number.

165210340060404 is an abundant number, since it is smaller than the sum of its proper divisors (252726202963596).

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

165210340060404 is a wasteful number, since it uses less digits than its factorization.

165210340060404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226397 (or 226392 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 165210340060404 its reverse (404060043012561), we get a palindrome (569270383072965).

The spelling of 165210340060404 in words is "one hundred sixty-five trillion, two hundred ten billion, three hundred forty million, sixty thousand, four hundred four".