20002577671177 has 4 divisors (see below), whose sum is σ = 20200622994756. Its totient is φ = 19804532347600.

The previous prime is 20002577671171. The next prime is 20002577671187. The reversal of 20002577671177 is 77117677520002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19484596626496 + 517981044681 = 4414136^2 + 719709^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002577671177 - 2²³ = 20002569282569 is a prime.

It is a super-2 number, since 2×20002577671177² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20002577671171) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 99022661638 + ... + 99022661839.

It is an arithmetic number, because the mean of its divisors is an integer number (5050155748689).

Almost surely, 2^{20002577671177} is an apocalyptic number.

It is an amenable number.

20002577671177 is a deficient number, since it is larger than the sum of its proper divisors (198045323579).

20002577671177 is a wasteful number, since it uses less digits than its factorization.

20002577671177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198045323578.

The product of its (nonzero) digits is 2016840, while the sum is 52.

The spelling of 20002577671177 in words is "twenty trillion, two billion, five hundred seventy-seven million, six hundred seventy-one thousand, one hundred seventy-seven".