164652235253 has 4 divisors (see below), whose sum is σ = 179620620288. Its totient is φ = 149683850220.

The previous prime is 164652235249. The next prime is 164652235271. The reversal of 164652235253 is 352532256461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 164652235253 - 2² = 164652235249 is a prime.

It is a super-2 number, since 2×164652235253² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164652255253) 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, 7484192501 + ... + 7484192522.

It is an arithmetic number, because the mean of its divisors is an integer number (44905155072).

Almost surely, 2^164652235253 is an apocalyptic number.

It is an amenable number.

164652235253 is a deficient number, since it is larger than the sum of its proper divisors (14968385035).

164652235253 is a wasteful number, since it uses less digits than its factorization.

164652235253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14968385034.

The product of its digits is 1296000, while the sum is 44.

The spelling of 164652235253 in words is "one hundred sixty-four billion, six hundred fifty-two million, two hundred thirty-five thousand, two hundred fifty-three".