20136835433 has 8 divisors (see below), whose sum is σ = 23657261376. Its totient is φ = 16898043600.

The previous prime is 20136835421. The next prime is 20136835441. The reversal of 20136835433 is 33453863102.

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 20136835433 - 2⁸ = 20136835177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20136835403) 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 7 ways as a sum of consecutive naturals, for example, 70408373 + ... + 70408658.

It is an arithmetic number, because the mean of its divisors is an integer number (2957157672).

Almost surely, 2^20136835433 is an apocalyptic number.

It is an amenable number.

20136835433 is a deficient number, since it is larger than the sum of its proper divisors (3520425943).

20136835433 is a wasteful number, since it uses less digits than its factorization.

20136835433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140817055.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 20136835433 in words is "twenty billion, one hundred thirty-six million, eight hundred thirty-five thousand, four hundred thirty-three".