2660466625 has 16 divisors (see below), whose sum is σ = 3322397520. Its totient is φ = 2127004800.

The previous prime is 2660466577. The next prime is 2660466637. The reversal of 2660466625 is 5266640662.

It can be written as a sum of positive squares in 8 ways, for example, as 1620529 + 2658846096 = 1273^2 + 51564^2 .

It is not a de Polignac number, because 2660466625 - 2²¹ = 2658369473 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217677 + ... + 229573.

It is an arithmetic number, because the mean of its divisors is an integer number (207649845).

Almost surely, 2^2660466625 is an apocalyptic number.

2660466625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2660466625 is a deficient number, since it is larger than the sum of its proper divisors (661930895).

2660466625 is a wasteful number, since it uses less digits than its factorization.

2660466625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13701 (or 13691 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

The square root of 2660466625 is about 51579.7113698788. The cubic root of 2660466625 is about 1385.6469975146.

The spelling of 2660466625 in words is "two billion, six hundred sixty million, four hundred sixty-six thousand, six hundred twenty-five".