20240669173 has 4 divisors (see below), whose sum is σ = 20241647020. Its totient is φ = 20239691328.

The previous prime is 20240669143. The next prime is 20240669177. The reversal of 20240669173 is 37196604202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37196604202 = 2 ⋅18598302101.

It can be written as a sum of positive squares in 2 ways, for example, as 4082954404 + 16157714769 = 63898^2 + 127113^2 .

It is a cyclic number.

It is not a de Polignac number, because 20240669173 - 2¹³ = 20240660981 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 (20240669177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457188 + ... + 499501.

It is an arithmetic number, because the mean of its divisors is an integer number (5060411755).

Almost surely, 2^20240669173 is an apocalyptic number.

It is an amenable number.

20240669173 is a deficient number, since it is larger than the sum of its proper divisors (977847).

20240669173 is an equidigital number, since it uses as much as digits as its factorization.

20240669173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977846.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 20240669173 in words is "twenty billion, two hundred forty million, six hundred sixty-nine thousand, one hundred seventy-three".