20505471570741 has 8 divisors (see below), whose sum is σ = 27340748956224. Its totient is φ = 13670254282880.

The previous prime is 20505471570739. The next prime is 20505471570817. The reversal of 20505471570741 is 14707517450502.

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 20505471570741 - 2¹ = 20505471570739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20505471570541) 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, 14222145 + ... + 15597446.

It is an arithmetic number, because the mean of its divisors is an integer number (3417593619528).

Almost surely, 2^{20505471570741} is an apocalyptic number.

It is an amenable number.

20505471570741 is a deficient number, since it is larger than the sum of its proper divisors (6835277385483).

20505471570741 is a wasteful number, since it uses less digits than its factorization.

20505471570741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30048811.

The product of its (nonzero) digits is 1372000, while the sum is 48.

The spelling of 20505471570741 in words is "twenty trillion, five hundred five billion, four hundred seventy-one million, five hundred seventy thousand, seven hundred forty-one".