2660994918 has 12 divisors (see below), whose sum is σ = 5765489028. Its totient is φ = 886998300.

The previous prime is 2660994901. The next prime is 2660994937. The reversal of 2660994918 is 8194990662.

2660994918 is a `hidden beast` number, since 2 + 6 + 60 + 99 + 491 + 8 = 666.

It is a Curzon number.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 73916508 + ... + 73916543.

It is an arithmetic number, because the mean of its divisors is an integer number (480457419).

Almost surely, 2^2660994918 is an apocalyptic number.

2660994918 is an abundant number, since it is smaller than the sum of its proper divisors (3104494110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2660994918 is a wasteful number, since it uses less digits than its factorization.

2660994918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147833059 (or 147833056 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 2660994918 is about 51584.8322474737. The cubic root of 2660994918 is about 1385.7387081384.

It can be divided in two parts, 2660 and 994918, that added together give a triangular number (997578 = T₁₄₁₂).

The spelling of 2660994918 in words is "two billion, six hundred sixty million, nine hundred ninety-four thousand, nine hundred eighteen".