2178464116 has 24 divisors (see below), whose sum is σ = 4166781696. Its totient is φ = 992088960.

The previous prime is 2178464089. The next prime is 2178464117. The reversal of 2178464116 is 6114648712.

It is a super-2 number, since 2×2178464116² = 9491411809399322912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2178464117) 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, 514606 + ... + 518821.

It is an arithmetic number, because the mean of its divisors is an integer number (173615904).

Almost surely, 2^2178464116 is an apocalyptic number.

It is an amenable number.

2178464116 is a deficient number, since it is larger than the sum of its proper divisors (1988317580).

2178464116 is a wasteful number, since it uses less digits than its factorization.

2178464116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033479 (or 1033477 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 2178464116 is about 46674.0197111841. The cubic root of 2178464116 is about 1296.3336768785. Note that the first 3 decimals are identical.

The spelling of 2178464116 in words is "two billion, one hundred seventy-eight million, four hundred sixty-four thousand, one hundred sixteen".