20652770566016 has 32 divisors (see below), whose sum is σ = 41200786033680. Its totient is φ = 10312181130240.

The previous prime is 20652770566007. The next prime is 20652770566037. The reversal of 20652770566016 is 61066507725602.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×20652770566016² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110876525 + ... + 111062636.

Almost surely, 2^{20652770566016} is an apocalyptic number.

It is an amenable number.

20652770566016 is a deficient number, since it is larger than the sum of its proper divisors (20548015467664).

20652770566016 is an equidigital number, since it uses as much as digits as its factorization.

20652770566016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221939902 (or 221939890 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 53.

The spelling of 20652770566016 in words is "twenty trillion, six hundred fifty-two billion, seven hundred seventy million, five hundred sixty-six thousand, sixteen".