20445718141 has 8 divisors (see below), whose sum is σ = 21375624384. Its totient is φ = 19519225440.

The previous prime is 20445718133. The next prime is 20445718177. The reversal of 20445718141 is 14181754402.

It is a happy number.

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 20445718141 - 2³ = 20445718133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20445718141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20445718441) 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, 841131 + ... + 865096.

It is an arithmetic number, because the mean of its divisors is an integer number (2671953048).

Almost surely, 2^20445718141 is an apocalyptic number.

It is an amenable number.

20445718141 is a deficient number, since it is larger than the sum of its proper divisors (929906243).

20445718141 is a wasteful number, since it uses less digits than its factorization.

20445718141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706771.

The product of its (nonzero) digits is 35840, while the sum is 37.

The spelling of 20445718141 in words is "twenty billion, four hundred forty-five million, seven hundred eighteen thousand, one hundred forty-one".