20535353902 has 16 divisors (see below), whose sum is σ = 36734049792. Its totient is φ = 8418219480.

The previous prime is 20535353893. The next prime is 20535353911. The reversal of 20535353902 is 20935353502.

It is an interprime number because it is at equal distance from previous prime (20535353893) and next prime (20535353911).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31886874 + ... + 31887517.

It is an arithmetic number, because the mean of its divisors is an integer number (2295878112).

Almost surely, 2^20535353902 is an apocalyptic number.

20535353902 is a deficient number, since it is larger than the sum of its proper divisors (16198695890).

20535353902 is a wasteful number, since it uses less digits than its factorization.

20535353902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63774423.

The product of its (nonzero) digits is 121500, while the sum is 37.

The spelling of 20535353902 in words is "twenty billion, five hundred thirty-five million, three hundred fifty-three thousand, nine hundred two".