2166234542 has 8 divisors (see below), whose sum is σ = 3249575256. Its totient is φ = 1083042792.

The previous prime is 2166234463. The next prime is 2166234569. The reversal of 2166234542 is 2454326612.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12293 + ... + 66959.

It is an arithmetic number, because the mean of its divisors is an integer number (406196907).

Almost surely, 2^2166234542 is an apocalyptic number.

2166234542 is a deficient number, since it is larger than the sum of its proper divisors (1083340714).

2166234542 is a wasteful number, since it uses less digits than its factorization.

2166234542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74482.

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

The square root of 2166234542 is about 46542.8248175806. The cubic root of 2166234542 is about 1293.9033150490.

The spelling of 2166234542 in words is "two billion, one hundred sixty-six million, two hundred thirty-four thousand, five hundred forty-two".