208945295125 has 32 divisors (see below), whose sum is σ = 299203317504. Its totient is φ = 142705800000.

The previous prime is 208945295107. The next prime is 208945295131. The reversal of 208945295125 is 521592549802.

It is not a de Polignac number, because 208945295125 - 2²¹ = 208943197973 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 (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256062 + ... + 695311.

It is an arithmetic number, because the mean of its divisors is an integer number (9350103672).

Almost surely, 2^208945295125 is an apocalyptic number.

208945295125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

208945295125 is a deficient number, since it is larger than the sum of its proper divisors (90258022379).

208945295125 is an equidigital number, since it uses as much as digits as its factorization.

208945295125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951646 (or 951636 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 52.

The spelling of 208945295125 in words is "two hundred eight billion, nine hundred forty-five million, two hundred ninety-five thousand, one hundred twenty-five".