20366065120261 has 8 divisors (see below), whose sum is σ = 23366069156160. Its totient is φ = 17388702624768.

The previous prime is 20366065120189. The next prime is 20366065120273. The reversal of 20366065120261 is 16202156066302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20366065120261 - 2¹⁵ = 20366065087493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20366065121261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5660383171 + ... + 5660386768.

It is an arithmetic number, because the mean of its divisors is an integer number (2920758644520).

Almost surely, 2^{20366065120261} is an apocalyptic number.

It is an amenable number.

20366065120261 is a deficient number, since it is larger than the sum of its proper divisors (3000004035899).

20366065120261 is a wasteful number, since it uses less digits than its factorization.

20366065120261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11320770203.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 20366065120261 in words is "twenty trillion, three hundred sixty-six billion, sixty-five million, one hundred twenty thousand, two hundred sixty-one".