20364618129 has 8 divisors (see below), whose sum is σ = 27250849920. Its totient is φ = 13527399216.

The previous prime is 20364618103. The next prime is 20364618167. The reversal of 20364618129 is 92181646302.

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

It is not a de Polignac number, because 20364618129 - 2⁸ = 20364617873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20364618629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12252249 + ... + 12253910.

It is an arithmetic number, because the mean of its divisors is an integer number (3406356240).

Almost surely, 2^20364618129 is an apocalyptic number.

It is an amenable number.

20364618129 is a deficient number, since it is larger than the sum of its proper divisors (6886231791).

20364618129 is a wasteful number, since it uses less digits than its factorization.

20364618129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24506439.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 20364618129 in words is "twenty billion, three hundred sixty-four million, six hundred eighteen thousand, one hundred twenty-nine".