2660388495 has 16 divisors (see below), whose sum is σ = 4441692672. Its totient is φ = 1357183520.

The previous prime is 2660388491. The next prime is 2660388509. The reversal of 2660388495 is 5948830662.

It is not a de Polignac number, because 2660388495 - 2² = 2660388491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660388491) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3855291 + ... + 3855980.

It is an arithmetic number, because the mean of its divisors is an integer number (277605792).

Almost surely, 2^2660388495 is an apocalyptic number.

2660388495 is a deficient number, since it is larger than the sum of its proper divisors (1781304177).

2660388495 is a wasteful number, since it uses less digits than its factorization.

2660388495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7711302.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The square root of 2660388495 is about 51578.9539928836. The cubic root of 2660388495 is about 1385.6334332700.

The spelling of 2660388495 in words is "two billion, six hundred sixty million, three hundred eighty-eight thousand, four hundred ninety-five".