2660370538 has 32 divisors (see below), whose sum is σ = 4821926400. Its totient is φ = 1075367664.

The previous prime is 2660370529. The next prime is 2660370547. The reversal of 2660370538 is 8350730662.

It is an interprime number because it is at equal distance from previous prime (2660370529) and next prime (2660370547).

It is a self number, because there is not a number n which added to its sum of digits gives 2660370538.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38353 + ... + 82411.

It is an arithmetic number, because the mean of its divisors is an integer number (150685200).

Almost surely, 2^2660370538 is an apocalyptic number.

2660370538 is a deficient number, since it is larger than the sum of its proper divisors (2161555862).

2660370538 is a wasteful number, since it uses less digits than its factorization.

2660370538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44314.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 2660370538 is about 51578.7799196530. The cubic root of 2660370538 is about 1385.6303156958.

The spelling of 2660370538 in words is "two billion, six hundred sixty million, three hundred seventy thousand, five hundred thirty-eight".