165210340060403 has 12 divisors (see below), whose sum is σ = 181602824969664. Its totient is φ = 150184611310800.

The previous prime is 165210340060397. The next prime is 165210340060427. The reversal of 165210340060403 is 304060043012561.

It is not a de Polignac number, because 165210340060403 - 2¹⁰ = 165210340059379 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165210340069403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27268451 + ... + 32771772.

It is an arithmetic number, because the mean of its divisors is an integer number (15133568747472).

Almost surely, 2^{165210340060403} is an apocalyptic number.

165210340060403 is a deficient number, since it is larger than the sum of its proper divisors (16392484909261).

165210340060403 is a wasteful number, since it uses less digits than its factorization.

165210340060403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60062986 (or 60062975 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 165210340060403 its reverse (304060043012561), we get a palindrome (469270383072964).

The spelling of 165210340060403 in words is "one hundred sixty-five trillion, two hundred ten billion, three hundred forty million, sixty thousand, four hundred three".