20655184834 has 8 divisors (see below), whose sum is σ = 30999377808. Its totient is φ = 10322058900.

The previous prime is 20655184831. The next prime is 20655184853. The reversal of 20655184834 is 43848155602.

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

It is not an unprimeable number, because it can be changed into a prime (20655184831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2762092 + ... + 2769559.

It is an arithmetic number, because the mean of its divisors is an integer number (3874922226).

Almost surely, 2^20655184834 is an apocalyptic number.

20655184834 is a deficient number, since it is larger than the sum of its proper divisors (10344192974).

20655184834 is a wasteful number, since it uses less digits than its factorization.

20655184834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5533520.

The product of its (nonzero) digits is 921600, while the sum is 46.

The spelling of 20655184834 in words is "twenty billion, six hundred fifty-five million, one hundred eighty-four thousand, eight hundred thirty-four".