20240661700045 has 4 divisors (see below), whose sum is σ = 24288794040060. Its totient is φ = 16192529360032.

The previous prime is 20240661699983. The next prime is 20240661700097. The reversal of 20240661700045 is 54000716604202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15997008139876 + 4243653560169 = 3999626^2 + 2060013^2 .

It is a cyclic number.

It is not a de Polignac number, because 20240661700045 - 2⁷ = 20240661699917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20240661699977 and 20240661700013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2024066170000 + ... + 2024066170009.

It is an arithmetic number, because the mean of its divisors is an integer number (6072198510015).

Almost surely, 2^{20240661700045} is an apocalyptic number.

It is an amenable number.

20240661700045 is a deficient number, since it is larger than the sum of its proper divisors (4048132340015).

20240661700045 is an equidigital number, since it uses as much as digits as its factorization.

20240661700045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4048132340014.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 20240661700045 in words is "twenty trillion, two hundred forty billion, six hundred sixty-one million, seven hundred thousand, forty-five".