20378580175 has 12 divisors (see below), whose sum is σ = 26368111440. Its totient is φ = 15594043520.

The previous prime is 20378580139. The next prime is 20378580199. The reversal of 20378580175 is 57108587302.

It is not a de Polignac number, because 20378580175 - 2¹¹ = 20378578127 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17719930 + ... + 17721079.

It is an arithmetic number, because the mean of its divisors is an integer number (2197342620).

Almost surely, 2^20378580175 is an apocalyptic number.

20378580175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20378580175 is a deficient number, since it is larger than the sum of its proper divisors (5989531265).

20378580175 is a wasteful number, since it uses less digits than its factorization.

20378580175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35441042 (or 35441037 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 46.

The spelling of 20378580175 in words is "twenty billion, three hundred seventy-eight million, five hundred eighty thousand, one hundred seventy-five".