20164343253 has 8 divisors (see below), whose sum is σ = 26899168416. Its totient is φ = 13436206800.

The previous prime is 20164343239. The next prime is 20164343281. The reversal of 20164343253 is 35234346102.

It is a happy number.

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

It is not a de Polignac number, because 20164343253 - 2⁸ = 20164342997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20164343453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1665138 + ... + 1677203.

It is an arithmetic number, because the mean of its divisors is an integer number (3362396052).

Almost surely, 2^20164343253 is an apocalyptic number.

It is an amenable number.

20164343253 is a deficient number, since it is larger than the sum of its proper divisors (6734825163).

20164343253 is a wasteful number, since it uses less digits than its factorization.

20164343253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344355.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 20164343253 its reverse (35234346102), we get a palindrome (55398689355).

The spelling of 20164343253 in words is "twenty billion, one hundred sixty-four million, three hundred forty-three thousand, two hundred fifty-three".