20581082170 has 16 divisors (see below), whose sum is σ = 40413761568. Its totient is φ = 7484029840.

The previous prime is 20581082167. The next prime is 20581082183. The reversal of 20581082170 is 7128018502.

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 in 7 ways as a sum of consecutive naturals, for example, 93550264 + ... + 93550483.

It is an arithmetic number, because the mean of its divisors is an integer number (2525860098).

Almost surely, 2^20581082170 is an apocalyptic number.

20581082170 is a deficient number, since it is larger than the sum of its proper divisors (19832679398).

20581082170 is a wasteful number, since it uses less digits than its factorization.

20581082170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187100765.

The product of its (nonzero) digits is 8960, while the sum is 34.

The spelling of 20581082170 in words is "twenty billion, five hundred eighty-one million, eighty-two thousand, one hundred seventy".