20353502353 has 8 divisors (see below), whose sum is σ = 20779947776. Its totient is φ = 19930050000.

The previous prime is 20353502347. The next prime is 20353502381. The reversal of 20353502353 is 35320535302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20353502353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20353502333) by changing a digit.

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, 734523 + ... + 761728.

It is an arithmetic number, because the mean of its divisors is an integer number (2597493472).

Almost surely, 2^20353502353 is an apocalyptic number.

It is an amenable number.

20353502353 is a deficient number, since it is larger than the sum of its proper divisors (426445423).

20353502353 is a wasteful number, since it uses less digits than its factorization.

20353502353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496535.

The product of its (nonzero) digits is 40500, while the sum is 31.

The spelling of 20353502353 in words is "twenty billion, three hundred fifty-three million, five hundred two thousand, three hundred fifty-three".