20035361691856 has 80 divisors (see below), whose sum is σ = 47223671241600. Its totient is φ = 8043257401344.

The previous prime is 20035361691827. The next prime is 20035361691883. The reversal of 20035361691856 is 65819616353002.

It is a junction number, because it is equal to n+sod(n) for n = 20035361691797 and 20035361691806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52704505 + ... + 53083288.

It is an arithmetic number, because the mean of its divisors is an integer number (590295890520).

Almost surely, 2^{20035361691856} is an apocalyptic number.

It is an amenable number.

20035361691856 is an abundant number, since it is smaller than the sum of its proper divisors (27188309549744).

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

20035361691856 is a wasteful number, since it uses less digits than its factorization.

20035361691856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105787916 (or 105787910 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 55.

The spelling of 20035361691856 in words is "twenty trillion, thirty-five billion, three hundred sixty-one million, six hundred ninety-one thousand, eight hundred fifty-six".