2166527047 has 8 divisors (see below), whose sum is σ = 2196633600. Its totient is φ = 2136487704.

The previous prime is 2166527017. The next prime is 2166527123. The reversal of 2166527047 is 7407256612.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2166527047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166527017) 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 in 7 ways as a sum of consecutive naturals, for example, 49938 + ... + 82624.

It is an arithmetic number, because the mean of its divisors is an integer number (274579200).

Almost surely, 2^2166527047 is an apocalyptic number.

2166527047 is a deficient number, since it is larger than the sum of its proper divisors (30106553).

2166527047 is an equidigital number, since it uses as much as digits as its factorization.

2166527047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33605.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 2166527047 is about 46545.9670326012. The cubic root of 2166527047 is about 1293.9615506875.

The spelling of 2166527047 in words is "two billion, one hundred sixty-six million, five hundred twenty-seven thousand, forty-seven".