20535353404 has 12 divisors (see below), whose sum is σ = 36473240104. Its totient is φ = 10114427664.

The previous prime is 20535353297. The next prime is 20535353537. The reversal of 20535353404 is 40435353502.

It is a self number, because there is not a number n which added to its sum of digits gives 20535353404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38311959 + ... + 38312494.

Almost surely, 2^20535353404 is an apocalyptic number.

It is an amenable number.

20535353404 is a deficient number, since it is larger than the sum of its proper divisors (15937886700).

20535353404 is a wasteful number, since it uses less digits than its factorization.

20535353404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76624524 (or 76624522 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 34.

The spelling of 20535353404 in words is "twenty billion, five hundred thirty-five million, three hundred fifty-three thousand, four hundred four".