20366723045 has 4 divisors (see below), whose sum is σ = 24440067660. Its totient is φ = 16293378432.

The previous prime is 20366722973. The next prime is 20366723053. The reversal of 20366723045 is 54032766302.

It is a happy number.

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 9059803489 + 11306919556 = 95183^2 + 106334^2 .

It is a cyclic number.

It is not a de Polignac number, because 20366723045 - 2¹⁰ = 20366722021 is a prime.

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, 2036672300 + ... + 2036672309.

It is an arithmetic number, because the mean of its divisors is an integer number (6110016915).

Almost surely, 2^20366723045 is an apocalyptic number.

It is an amenable number.

20366723045 is a deficient number, since it is larger than the sum of its proper divisors (4073344615).

20366723045 is an equidigital number, since it uses as much as digits as its factorization.

20366723045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073344614.

The product of its (nonzero) digits is 181440, while the sum is 38.

The spelling of 20366723045 in words is "twenty billion, three hundred sixty-six million, seven hundred twenty-three thousand, forty-five".