2066138125 has 10 divisors (see below), whose sum is σ = 2581846982. Its totient is φ = 1652910000.

The previous prime is 2066138119. The next prime is 2066138131. The reversal of 2066138125 is 5218316602.

It is an interprime number because it is at equal distance from previous prime (2066138119) and next prime (2066138131).

It can be written as a sum of positive squares in 5 ways, for example, as 1512665449 + 553472676 = 38893^2 + 23526^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2066138125 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1652286 + ... + 1653535.

Almost surely, 2^2066138125 is an apocalyptic number.

2066138125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2066138125 is a deficient number, since it is larger than the sum of its proper divisors (515708857).

2066138125 is an frugal number, since it uses more digits than its factorization.

2066138125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305841 (or 3305826 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2066138125 is about 45454.7921016035. The cubic root of 2066138125 is about 1273.6588486345.

The spelling of 2066138125 in words is "two billion, sixty-six million, one hundred thirty-eight thousand, one hundred twenty-five".