20513471760366 has 16 divisors (see below), whose sum is σ = 44182862253264. Its totient is φ = 6311837464704.

The previous prime is 20513471760337. The next prime is 20513471760401. The reversal of 20513471760366 is 66306717431502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131496613771 + ... + 131496613926.

It is an arithmetic number, because the mean of its divisors is an integer number (2761428890829).

Almost surely, 2^{20513471760366} is an apocalyptic number.

20513471760366 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20513471760366 is an abundant number, since it is smaller than the sum of its proper divisors (23669390492898).

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

20513471760366 is a wasteful number, since it uses less digits than its factorization.

20513471760366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262993227715.

The product of its (nonzero) digits is 3810240, while the sum is 51.

The spelling of 20513471760366 in words is "twenty trillion, five hundred thirteen billion, four hundred seventy-one million, seven hundred sixty thousand, three hundred sixty-six".