2153161466 has 8 divisors (see below), whose sum is σ = 3231368724. Its totient is φ = 1076038560.

The previous prime is 2153161427. The next prime is 2153161481. The reversal of 2153161466 is 6641613512.

It can be written as a sum of positive squares in 2 ways, for example, as 2027250625 + 125910841 = 45025^2 + 11221^2 .

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

It is a super-2 number, since 2×2153161466² = 9272208597334538312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266105 + ... + 274076.

Almost surely, 2^2153161466 is an apocalyptic number.

2153161466 is a deficient number, since it is larger than the sum of its proper divisors (1078207258).

2153161466 is a wasteful number, since it uses less digits than its factorization.

2153161466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542176.

The product of its digits is 25920, while the sum is 35.

The square root of 2153161466 is about 46402.1709190421. The cubic root of 2153161466 is about 1291.2951889603.

Adding to 2153161466 its reverse (6641613512), we get a palindrome (8794774978).

The spelling of 2153161466 in words is "two billion, one hundred fifty-three million, one hundred sixty-one thousand, four hundred sixty-six".