20392796717965 has 16 divisors (see below), whose sum is σ = 27970538185728. Its totient is φ = 13981994977536.

The previous prime is 20392796717963. The next prime is 20392796717971. The reversal of 20392796717965 is 56971769729302.

It is a cyclic number.

It is not a de Polignac number, because 20392796717965 - 2¹ = 20392796717963 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 (20392796717963) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 33802092 + ... + 34400101.

It is an arithmetic number, because the mean of its divisors is an integer number (1748158636608).

Almost surely, 2^{20392796717965} is an apocalyptic number.

It is an amenable number.

20392796717965 is a deficient number, since it is larger than the sum of its proper divisors (7577741467763).

20392796717965 is an equidigital number, since it uses as much as digits as its factorization.

20392796717965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68210748.

The product of its (nonzero) digits is 540101520, while the sum is 73.

The spelling of 20392796717965 in words is "twenty trillion, three hundred ninety-two billion, seven hundred ninety-six million, seven hundred seventeen thousand, nine hundred sixty-five".