20441542671 has 32 divisors (see below), whose sum is σ = 33045062400. Its totient is φ = 12385729440.

The previous prime is 20441542669. The next prime is 20441542687. The reversal of 20441542671 is 17624514402.

20441542671 is a `hidden beast` number, since 2 + 0 + 4 + 41 + 542 + 6 + 71 = 666.

It is not a de Polignac number, because 20441542671 - 2¹ = 20441542669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20441542871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1903465 + ... + 1914173.

It is an arithmetic number, because the mean of its divisors is an integer number (1032658200).

Almost surely, 2^20441542671 is an apocalyptic number.

20441542671 is a deficient number, since it is larger than the sum of its proper divisors (12603519729).

20441542671 is a wasteful number, since it uses less digits than its factorization.

20441542671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17156 (or 17150 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 20441542671 in words is "twenty billion, four hundred forty-one million, five hundred forty-two thousand, six hundred seventy-one".