20373403706761 has 16 divisors (see below), whose sum is σ = 24911150604160. Its totient is φ = 16272606430080.

The previous prime is 20373403706753. The next prime is 20373403706783. The reversal of 20373403706761 is 16760730437302.

It is not a de Polignac number, because 20373403706761 - 2³ = 20373403706753 is a prime.

It is a super-2 number, since 2×20373403706761² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20373403706861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1255594236 + ... + 1255610461.

It is an arithmetic number, because the mean of its divisors is an integer number (1556946912760).

Almost surely, 2^{20373403706761} is an apocalyptic number.

It is an amenable number.

20373403706761 is a deficient number, since it is larger than the sum of its proper divisors (4537746897399).

20373403706761 is a wasteful number, since it uses less digits than its factorization.

20373403706761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511204784.

The product of its (nonzero) digits is 2667168, while the sum is 49.

The spelling of 20373403706761 in words is "twenty trillion, three hundred seventy-three billion, four hundred three million, seven hundred six thousand, seven hundred sixty-one".