2666520162 has 56 divisors (see below), whose sum is σ = 6081626880. Its totient is φ = 876287160.

The previous prime is 2666520161. The next prime is 2666520179. The reversal of 2666520162 is 2610256662.

It is a super-2 number, since 2×2666520162² = 14220659548705012488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2666520161) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 90639 + ... + 116397.

It is an arithmetic number, because the mean of its divisors is an integer number (108600480).

Almost surely, 2^2666520162 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2666520162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3040813440).

2666520162 is an abundant number, since it is smaller than the sum of its proper divisors (3415106718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2666520162 is an equidigital number, since it uses as much as digits as its factorization.

2666520162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25850 (or 25835 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 2666520162 is about 51638.3594046132. The cubic root of 2666520162 is about 1386.6971530706.

The spelling of 2666520162 in words is "two billion, six hundred sixty-six million, five hundred twenty thousand, one hundred sixty-two".