20955424143 has 8 divisors (see below), whose sum is σ = 27978173568. Its totient is φ = 13951478744.

The previous prime is 20955424141. The next prime is 20955424151. The reversal of 20955424143 is 34142455902.

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 20955424143 - 2¹ = 20955424141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20955424141) 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, 4698405 + ... + 4702862.

It is an arithmetic number, because the mean of its divisors is an integer number (3497271696).

Almost surely, 2^20955424143 is an apocalyptic number.

20955424143 is a deficient number, since it is larger than the sum of its proper divisors (7022749425).

20955424143 is an equidigital number, since it uses as much as digits as its factorization.

20955424143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9402013.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 20955424143 in words is "twenty billion, nine hundred fifty-five million, four hundred twenty-four thousand, one hundred forty-three".