20086461651690 has 144 divisors (see below), whose sum is σ = 61319068885152. Its totient is φ = 4548282798528.

The previous prime is 20086461651653. The next prime is 20086461651719. The reversal of 20086461651690 is 9615616468002.

20086461651690 is a `hidden beast` number, since 2 + 0 + 0 + 8 + 6 + 4 + 616 + 5 + 16 + 9 + 0 = 666.

It is a super-2 number, since 2×20086461651690² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 20812024 + ... + 21755763.

It is an arithmetic number, because the mean of its divisors is an integer number (425826867258).

Almost surely, 2^{20086461651690} is an apocalyptic number.

20086461651690 is an abundant number, since it is smaller than the sum of its proper divisors (41232607233462).

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

20086461651690 is a wasteful number, since it uses less digits than its factorization.

20086461651690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42567921 (or 42567911 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 20086461651690 in words is "twenty trillion, eighty-six billion, four hundred sixty-one million, six hundred fifty-one thousand, six hundred ninety".