2152166162722 has 8 divisors (see below), whose sum is σ = 3232653406236. Its totient is φ = 1074615027312.

The previous prime is 2152166162669. The next prime is 2152166162723. The reversal of 2152166162722 is 2272616612512.

It can be written as a sum of positive squares in 2 ways, for example, as 2150150062921 + 2016099801 = 1466339^2 + 44901^2 .

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

It is a super-3 number, since 3×2152166162722³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2152166162723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734025193 + ... + 734028124.

Almost surely, 2^{2152166162722} is an apocalyptic number.

2152166162722 is a deficient number, since it is larger than the sum of its proper divisors (1080487243514).

2152166162722 is a wasteful number, since it uses less digits than its factorization.

2152166162722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468054052.

The product of its digits is 241920, while the sum is 43.

The spelling of 2152166162722 in words is "two trillion, one hundred fifty-two billion, one hundred sixty-six million, one hundred sixty-two thousand, seven hundred twenty-two".