20002577671173 has 64 divisors (see below), whose sum is σ = 29266964508672. Its totient is φ = 12113439528960.

The previous prime is 20002577671171. The next prime is 20002577671187. The reversal of 20002577671173 is 37117677520002.

It is not a de Polignac number, because 20002577671173 - 2¹ = 20002577671171 is a prime.

It is a super-2 number, since 2×20002577671173² (a number of 27 digits) contains 22 as substring.

It is a congruent 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 63 ways as a sum of consecutive naturals, for example, 158787253 + ... + 158913173.

It is an arithmetic number, because the mean of its divisors is an integer number (457296320448).

Almost surely, 2^{20002577671173} is an apocalyptic number.

20002577671173 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20002577671173 is a deficient number, since it is larger than the sum of its proper divisors (9264386837499).

20002577671173 is a wasteful number, since it uses less digits than its factorization.

20002577671173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127474.

The product of its (nonzero) digits is 864360, while the sum is 48.

The spelling of 20002577671173 in words is "twenty trillion, two billion, five hundred seventy-seven million, six hundred seventy-one thousand, one hundred seventy-three".