20066163607849 has 32 divisors (see below), whose sum is σ = 20381112335232. Its totient is φ = 19754824320000.

The previous prime is 20066163607837. The next prime is 20066163607879. The reversal of 20066163607849 is 94870636166002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20066163607849 - 2⁵ = 20066163607817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20066163607793 and 20066163607802.

It is not an unprimeable number, because it can be changed into a prime (20066163607879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5517227659 + ... + 5517231295.

It is an arithmetic number, because the mean of its divisors is an integer number (636909760476).

Almost surely, 2^{20066163607849} is an apocalyptic number.

It is an amenable number.

20066163607849 is a deficient number, since it is larger than the sum of its proper divisors (314948727383).

20066163607849 is a wasteful number, since it uses less digits than its factorization.

20066163607849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4777.

The product of its (nonzero) digits is 15676416, while the sum is 58.

The spelling of 20066163607849 in words is "twenty trillion, sixty-six billion, one hundred sixty-three million, six hundred seven thousand, eight hundred forty-nine".