20540733733 has 8 divisors (see below), whose sum is σ = 22122682848. Its totient is φ = 18959055024.

The previous prime is 20540733709. The next prime is 20540733751. The reversal of 20540733733 is 33733704502.

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

It is not a de Polignac number, because 20540733733 - 2⁹ = 20540733221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20540733692 and 20540733701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20540733133) 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, 106866 + ... + 229132.

It is an arithmetic number, because the mean of its divisors is an integer number (2765335356).

Almost surely, 2^20540733733 is an apocalyptic number.

It is an amenable number.

20540733733 is a deficient number, since it is larger than the sum of its proper divisors (1581949115).

20540733733 is a wasteful number, since it uses less digits than its factorization.

20540733733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135203.

The product of its (nonzero) digits is 158760, while the sum is 37.

The spelling of 20540733733 in words is "twenty billion, five hundred forty million, seven hundred thirty-three thousand, seven hundred thirty-three".