2166070375 has 16 divisors (see below), whose sum is σ = 3089436480. Its totient is φ = 1485304800.

The previous prime is 2166070271. The next prime is 2166070447. The reversal of 2166070375 is 5730706612.

It is not a de Polignac number, because 2166070375 - 2²¹ = 2163973223 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1236880 + ... + 1238629.

It is an arithmetic number, because the mean of its divisors is an integer number (193089780).

Almost surely, 2^2166070375 is an apocalyptic number.

2166070375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2166070375 is a deficient number, since it is larger than the sum of its proper divisors (923366105).

2166070375 is an equidigital number, since it uses as much as digits as its factorization.

2166070375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475531 (or 2475521 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 2166070375 is about 46541.0611718298. The cubic root of 2166070375 is about 1293.8706282850.

Adding to 2166070375 its reverse (5730706612), we get a palindrome (7896776987).

The spelling of 2166070375 in words is "two billion, one hundred sixty-six million, seventy thousand, three hundred seventy-five".