2660980918 has 16 divisors (see below), whose sum is σ = 4102505280. Its totient is φ = 1293969600.

The previous prime is 2660980897. The next prime is 2660980919. The reversal of 2660980918 is 8190890662.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660980919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111678 + ... + 133393.

It is an arithmetic number, because the mean of its divisors is an integer number (256406580).

Almost surely, 2^2660980918 is an apocalyptic number.

2660980918 is a deficient number, since it is larger than the sum of its proper divisors (1441524362).

2660980918 is a wasteful number, since it uses less digits than its factorization.

2660980918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245223.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 2660980918 is about 51584.6965484920. The cubic root of 2660980918 is about 1385.7362779225.

The spelling of 2660980918 in words is "two billion, six hundred sixty million, nine hundred eighty thousand, nine hundred eighteen".