20504664141 has 8 divisors (see below), whose sum is σ = 29442594720. Its totient is φ = 12618254832.

The previous prime is 20504664137. The next prime is 20504664161. The reversal of 20504664141 is 14146640502.

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

It is not a de Polignac number, because 20504664141 - 2² = 20504664137 is a prime.

It is a super-2 number, since 2×20504664141² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20504664161) 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, 262880271 + ... + 262880348.

It is an arithmetic number, because the mean of its divisors is an integer number (3680324340).

Almost surely, 2^20504664141 is an apocalyptic number.

It is an amenable number.

20504664141 is a deficient number, since it is larger than the sum of its proper divisors (8937930579).

20504664141 is a wasteful number, since it uses less digits than its factorization.

20504664141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525760635.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 20504664141 in words is "twenty billion, five hundred four million, six hundred sixty-four thousand, one hundred forty-one".