2166270537 has 16 divisors (see below), whose sum is σ = 2952210240. Its totient is φ = 1412428992.

The previous prime is 2166270529. The next prime is 2166270551. The reversal of 2166270537 is 7350726612.

It is not a de Polignac number, because 2166270537 - 2³ = 2166270529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2166270495 and 2166270504.

It is not an unprimeable number, because it can be changed into a prime (2166270517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28914 + ... + 71892.

It is an arithmetic number, because the mean of its divisors is an integer number (184513140).

Almost surely, 2^2166270537 is an apocalyptic number.

It is an amenable number.

2166270537 is a deficient number, since it is larger than the sum of its proper divisors (785939703).

2166270537 is a wasteful number, since it uses less digits than its factorization.

2166270537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43352.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 2166270537 is about 46543.2115028604. The cubic root of 2166270537 is about 1293.9104816771.

The spelling of 2166270537 in words is "two billion, one hundred sixty-six million, two hundred seventy thousand, five hundred thirty-seven".