2666520134 has 16 divisors (see below), whose sum is σ = 4176576000. Its totient is φ = 1274408520.

The previous prime is 2666520133. The next prime is 2666520161. The reversal of 2666520134 is 4310256662.

It is a happy number.

It is a super-2 number, since 2×2666520134² = 14220659250054755912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2666520094 and 2666520103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666520133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49619 + ... + 88289.

It is an arithmetic number, because the mean of its divisors is an integer number (261036000).

Almost surely, 2^2666520134 is an apocalyptic number.

2666520134 is a deficient number, since it is larger than the sum of its proper divisors (1510055866).

2666520134 is a wasteful number, since it uses less digits than its factorization.

2666520134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40195.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 2666520134 is about 51638.3591334969. The cubic root of 2666520134 is about 1386.6971482169.

Adding to 2666520134 its reverse (4310256662), we get a palindrome (6976776796).

The spelling of 2666520134 in words is "two billion, six hundred sixty-six million, five hundred twenty thousand, one hundred thirty-four".