20835091604 has 12 divisors (see below), whose sum is σ = 38046689184. Its totient is φ = 9964608984.

The previous prime is 20835091603. The next prime is 20835091621. The reversal of 20835091604 is 40619053802.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20835091603) 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 3 ways as a sum of consecutive naturals, for example, 113234102 + ... + 113234285.

It is an arithmetic number, because the mean of its divisors is an integer number (3170557432).

Almost surely, 2^20835091604 is an apocalyptic number.

It is an amenable number.

20835091604 is a deficient number, since it is larger than the sum of its proper divisors (17211597580).

20835091604 is a wasteful number, since it uses less digits than its factorization.

20835091604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226468414 (or 226468412 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 20835091604 in words is "twenty billion, eight hundred thirty-five million, ninety-one thousand, six hundred four".