2666520014 has 24 divisors (see below), whose sum is σ = 4149130440. Its totient is φ = 1285214112.

The previous prime is 2666520013. The next prime is 2666520029. The reversal of 2666520014 is 4100256662.

It is a super-2 number, since 2×2666520014² = 14220657970125120392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666520013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1797317 + ... + 1798799.

It is an arithmetic number, because the mean of its divisors is an integer number (172880435).

Almost surely, 2^2666520014 is an apocalyptic number.

2666520014 is a deficient number, since it is larger than the sum of its proper divisors (1482610426).

2666520014 is a wasteful number, since it uses less digits than its factorization.

2666520014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612 (or 2583 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 2666520014 is about 51638.3579715699. The cubic root of 2666520014 is about 1386.6971274153.

Adding to 2666520014 its reverse (4100256662), we get a palindrome (6766776676).

The spelling of 2666520014 in words is "two billion, six hundred sixty-six million, five hundred twenty thousand, fourteen".