20107177050566 has 4 divisors (see below), whose sum is σ = 30160765575852. Its totient is φ = 10053588525282.

The previous prime is 20107177050487. The next prime is 20107177050619. The reversal of 20107177050566 is 66505077170102.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20107177050566.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5026794262640 + ... + 5026794262643.

It is an arithmetic number, because the mean of its divisors is an integer number (7540191393963).

Almost surely, 2^{20107177050566} is an apocalyptic number.

20107177050566 is a deficient number, since it is larger than the sum of its proper divisors (10053588525286).

20107177050566 is a wasteful number, since it uses less digits than its factorization.

20107177050566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10053588525285.

The product of its (nonzero) digits is 617400, while the sum is 47.

The spelling of 20107177050566 in words is "twenty trillion, one hundred seven billion, one hundred seventy-seven million, fifty thousand, five hundred sixty-six".