20004166297 has 4 divisors (see below), whose sum is σ = 20649462016. Its totient is φ = 19358870580.

The previous prime is 20004166253. The next prime is 20004166319. The reversal of 20004166297 is 79266140002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20004166297 - 2¹¹ = 20004164249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20004166997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322647813 + ... + 322647874.

It is an arithmetic number, because the mean of its divisors is an integer number (5162365504).

Almost surely, 2^20004166297 is an apocalyptic number.

It is an amenable number.

20004166297 is a deficient number, since it is larger than the sum of its proper divisors (645295719).

20004166297 is an equidigital number, since it uses as much as digits as its factorization.

20004166297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645295718.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 20004166297 in words is "twenty billion, four million, one hundred sixty-six thousand, two hundred ninety-seven".