2145667118 has 32 divisors (see below), whose sum is σ = 3700339200. Its totient is φ = 914078880.

The previous prime is 2145667049. The next prime is 2145667127. The reversal of 2145667118 is 8117665412.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2775380 + ... + 2776152.

It is an arithmetic number, because the mean of its divisors is an integer number (115635600).

Almost surely, 2^2145667118 is an apocalyptic number.

2145667118 is a deficient number, since it is larger than the sum of its proper divisors (1554672082).

2145667118 is a wasteful number, since it uses less digits than its factorization.

2145667118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712.

The product of its digits is 80640, while the sum is 41.

The square root of 2145667118 is about 46321.3462455486. The cubic root of 2145667118 is about 1289.7952758867.

The spelling of 2145667118 in words is "two billion, one hundred forty-five million, six hundred sixty-seven thousand, one hundred eighteen".