2666521024 has 14 divisors (see below), whose sum is σ = 5291377784. Its totient is φ = 1333260480.

The previous prime is 2666520991. The next prime is 2666521027. The reversal of 2666521024 is 4201256662.

It is a super-2 number, since 2×2666521024² = 14220668742868017152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666521027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20832132 + ... + 20832259.

It is an arithmetic number, because the mean of its divisors is an integer number (377955556).

Almost surely, 2^2666521024 is an apocalyptic number.

It is an amenable number.

2666521024 is a deficient number, since it is larger than the sum of its proper divisors (2624856760).

2666521024 is an equidigital number, since it uses as much as digits as its factorization.

2666521024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41664403 (or 41664393 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 2666521024 is about 51638.3677511209. The cubic root of 2666521024 is about 1386.6973024954.

Adding to 2666521024 its reverse (4201256662), we get a palindrome (6867777686).

The spelling of 2666521024 in words is "two billion, six hundred sixty-six million, five hundred twenty-one thousand, twenty-four".