20418364051 has 8 divisors (see below), whose sum is σ = 21248932320. Its totient is φ = 19596228288.

The previous prime is 20418364033. The next prime is 20418364061. The reversal of 20418364051 is 15046381402.

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

It is a cyclic number.

It is not a de Polignac number, because 20418364051 - 2²⁹ = 19881493139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20418363998 and 20418364016.

It is not an unprimeable number, because it can be changed into a prime (20418364061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2103186 + ... + 2112871.

It is an arithmetic number, because the mean of its divisors is an integer number (2656116540).

Almost surely, 2^20418364051 is an apocalyptic number.

20418364051 is a deficient number, since it is larger than the sum of its proper divisors (830568269).

20418364051 is a wasteful number, since it uses less digits than its factorization.

20418364051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4216253.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 20418364051 in words is "twenty billion, four hundred eighteen million, three hundred sixty-four thousand, fifty-one".