20035351836 has 96 divisors (see below), whose sum is σ = 55230336000. Its totient is φ = 6259163904.

The previous prime is 20035351811. The next prime is 20035351849. The reversal of 20035351836 is 63815353002.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20035351836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415975 + ... + 461633.

It is an arithmetic number, because the mean of its divisors is an integer number (575316000).

Almost surely, 2^20035351836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20035351836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27615168000).

20035351836 is an abundant number, since it is smaller than the sum of its proper divisors (35194984164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20035351836 is a wasteful number, since it uses less digits than its factorization.

20035351836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45928 (or 45920 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 20035351836 in words is "twenty billion, thirty-five million, three hundred fifty-one thousand, eight hundred thirty-six".