20410505173 has 8 divisors (see below), whose sum is σ = 21044602656. Its totient is φ = 19783654800.

The previous prime is 20410505161. The next prime is 20410505179. The reversal of 20410505173 is 37150501402.

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 20410505173 - 2⁹ = 20410504661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20410505179) 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, 1806058 + ... + 1817323.

It is an arithmetic number, because the mean of its divisors is an integer number (2630575332).

Almost surely, 2^20410505173 is an apocalyptic number.

It is an amenable number.

20410505173 is a deficient number, since it is larger than the sum of its proper divisors (634097483).

20410505173 is a wasteful number, since it uses less digits than its factorization.

20410505173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623555.

The product of its (nonzero) digits is 4200, while the sum is 28.

The spelling of 20410505173 in words is "twenty billion, four hundred ten million, five hundred five thousand, one hundred seventy-three".