2166416534 has 4 divisors (see below), whose sum is σ = 3249624804. Its totient is φ = 1083208266.

The previous prime is 2166416533. The next prime is 2166416627. The reversal of 2166416534 is 4356146612.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166416531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541604132 + ... + 541604135.

It is an arithmetic number, because the mean of its divisors is an integer number (812406201).

Almost surely, 2^2166416534 is an apocalyptic number.

2166416534 is a deficient number, since it is larger than the sum of its proper divisors (1083208270).

2166416534 is a wasteful number, since it uses less digits than its factorization.

2166416534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083208269.

The product of its digits is 103680, while the sum is 38.

The square root of 2166416534 is about 46544.7798791658. The cubic root of 2166416534 is about 1293.9395489614.

The spelling of 2166416534 in words is "two billion, one hundred sixty-six million, four hundred sixteen thousand, five hundred thirty-four".