164342621015303 has 4 divisors (see below), whose sum is σ = 164342646935688. Its totient is φ = 164342595094920.

The previous prime is 164342621015297. The next prime is 164342621015341. The reversal of 164342621015303 is 303510126243461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 164342621015303 - 2⁸ = 164342621015047 is a prime.

It is a super-2 number, since 2×164342621015303² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164342621014303) 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, 3624593 + ... + 18488453.

It is an arithmetic number, because the mean of its divisors is an integer number (41085661733922).

Almost surely, 2^{164342621015303} is an apocalyptic number.

164342621015303 is a deficient number, since it is larger than the sum of its proper divisors (25920385).

164342621015303 is a wasteful number, since it uses less digits than its factorization.

164342621015303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25920384.

The product of its (nonzero) digits is 311040, while the sum is 41.

Adding to 164342621015303 its reverse (303510126243461), we get a palindrome (467852747258764).

The spelling of 164342621015303 in words is "one hundred sixty-four trillion, three hundred forty-two billion, six hundred twenty-one million, fifteen thousand, three hundred three".