20641673175 has 48 divisors (see below), whose sum is σ = 35307359232. Its totient is φ = 10629907200.

The previous prime is 20641673167. The next prime is 20641673197. The reversal of 20641673175 is 57137614602.

It is a happy number.

It is not a de Polignac number, because 20641673175 - 2³ = 20641673167 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1052812 + ... + 1072238.

It is an arithmetic number, because the mean of its divisors is an integer number (735569984).

Almost surely, 2^20641673175 is an apocalyptic number.

20641673175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20641673175 is a deficient number, since it is larger than the sum of its proper divisors (14665686057).

20641673175 is a wasteful number, since it uses less digits than its factorization.

20641673175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19928 (or 19923 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 20641673175 in words is "twenty billion, six hundred forty-one million, six hundred seventy-three thousand, one hundred seventy-five".