2166853539 has 8 divisors (see below), whose sum is σ = 2917188352. Its totient is φ = 1430543880.

The previous prime is 2166853519. The next prime is 2166853573. The reversal of 2166853539 is 9353586612.

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

It is not a de Polignac number, because 2166853539 - 2¹⁶ = 2166788003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2166853519) 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, 3505927 + ... + 3506544.

It is an arithmetic number, because the mean of its divisors is an integer number (364648544).

Almost surely, 2^2166853539 is an apocalyptic number.

2166853539 is a deficient number, since it is larger than the sum of its proper divisors (750334813).

2166853539 is a wasteful number, since it uses less digits than its factorization.

2166853539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7012577.

The product of its digits is 1166400, while the sum is 48.

The square root of 2166853539 is about 46549.4741001442. The cubic root of 2166853539 is about 1294.0265467027.

The spelling of 2166853539 in words is "two billion, one hundred sixty-six million, eight hundred fifty-three thousand, five hundred thirty-nine".