20354542255 has 8 divisors (see below), whose sum is σ = 25862242032. Its totient is φ = 15325772928.

The previous prime is 20354542223. The next prime is 20354542261. The reversal of 20354542255 is 55224545302.

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 20354542255 - 2⁵ = 20354542223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119732517 + ... + 119732686.

It is an arithmetic number, because the mean of its divisors is an integer number (3232780254).

Almost surely, 2^20354542255 is an apocalyptic number.

20354542255 is a deficient number, since it is larger than the sum of its proper divisors (5507699777).

20354542255 is a wasteful number, since it uses less digits than its factorization.

20354542255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239465225.

The product of its (nonzero) digits is 240000, while the sum is 37.

The spelling of 20354542255 in words is "twenty billion, three hundred fifty-four million, five hundred forty-two thousand, two hundred fifty-five".