2166440435 has 8 divisors (see below), whose sum is σ = 2604721536. Its totient is φ = 1729823680.

The previous prime is 2166440429. The next prime is 2166440453. The reversal of 2166440435 is 5340446612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2166440435 - 2¹⁰ = 2166439411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2166440395 and 2166440404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413219 + ... + 418428.

It is an arithmetic number, because the mean of its divisors is an integer number (325590192).

Almost surely, 2^2166440435 is an apocalyptic number.

2166440435 is a deficient number, since it is larger than the sum of its proper divisors (438281101).

2166440435 is an equidigital number, since it uses as much as digits as its factorization.

2166440435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832173.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 2166440435 is about 46545.0366312027. The cubic root of 2166440435 is about 1293.9443074085.

The spelling of 2166440435 in words is "two billion, one hundred sixty-six million, four hundred forty thousand, four hundred thirty-five".