2118091568 has 20 divisors (see below), whose sum is σ = 4112244240. Its totient is φ = 1056867264.

The previous prime is 2118091559. The next prime is 2118091579. The reversal of 2118091568 is 8651908112.

It is a zygodrome in base 2.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 128123 + ... + 143706.

It is an arithmetic number, because the mean of its divisors is an integer number (205612212).

Almost surely, 2^2118091568 is an apocalyptic number.

It is an amenable number.

2118091568 is a deficient number, since it is larger than the sum of its proper divisors (1994152672).

2118091568 is a wasteful number, since it uses less digits than its factorization.

2118091568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272324 (or 272318 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 41.

The square root of 2118091568 is about 46022.7288195735. The cubic root of 2118091568 is about 1284.2460652301.

The spelling of 2118091568 in words is "two billion, one hundred eighteen million, ninety-one thousand, five hundred sixty-eight".