2166670153 has 4 divisors (see below), whose sum is σ = 2166765520. Its totient is φ = 2166574788.

The previous prime is 2166670147. The next prime is 2166670171. The reversal of 2166670153 is 3510766612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2166670153 - 2¹³ = 2166661961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2166673153) 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 3 ways as a sum of consecutive naturals, for example, 8326 + ... + 66352.

It is an arithmetic number, because the mean of its divisors is an integer number (541691380).

Almost surely, 2^2166670153 is an apocalyptic number.

It is an amenable number.

2166670153 is a deficient number, since it is larger than the sum of its proper divisors (95367).

2166670153 is an equidigital number, since it uses as much as digits as its factorization.

2166670153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95366.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 2166670153 is about 46547.5042617754. The cubic root of 2166670153 is about 1293.9900401518.

It can be divided in two parts, 21666 and 70153, that added together give a palindrome (91819).

The spelling of 2166670153 in words is "two billion, one hundred sixty-six million, six hundred seventy thousand, one hundred fifty-three".