20353683535 has 8 divisors (see below), whose sum is σ = 25084539936. Its totient is φ = 15842867040.

The previous prime is 20353683527. The next prime is 20353683563. The reversal of 20353683535 is 53538635302.

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

It is not a de Polignac number, because 20353683535 - 2³ = 20353683527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20353683491 and 20353683500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55009771 + ... + 55010140.

It is an arithmetic number, because the mean of its divisors is an integer number (3135567492).

Almost surely, 2^20353683535 is an apocalyptic number.

20353683535 is a deficient number, since it is larger than the sum of its proper divisors (4730856401).

20353683535 is a wasteful number, since it uses less digits than its factorization.

20353683535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110019953.

The product of its (nonzero) digits is 972000, while the sum is 43.

The spelling of 20353683535 in words is "twenty billion, three hundred fifty-three million, six hundred eighty-three thousand, five hundred thirty-five".