20535311353502 has 16 divisors (see below), whose sum is σ = 34384707384192. Its totient is φ = 9117157260120.

The previous prime is 20535311353493. The next prime is 20535311353507.

20535311353502 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20535311353507) 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, 10853757698 + ... + 10853759589.

It is an arithmetic number, because the mean of its divisors is an integer number (2149044211512).

Almost surely, 2^{20535311353502} is an apocalyptic number.

20535311353502 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20535311353502 is a deficient number, since it is larger than the sum of its proper divisors (13849396030690).

20535311353502 is a wasteful number, since it uses less digits than its factorization.

20535311353502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21707517343.

The product of its (nonzero) digits is 202500, while the sum is 38.

The spelling of 20535311353502 in words is "twenty trillion, five hundred thirty-five billion, three hundred eleven million, three hundred fifty-three thousand, five hundred two".