2666262020 has 24 divisors (see below), whose sum is σ = 5893843200. Its totient is φ = 1010372832.

The previous prime is 2666262019. The next prime is 2666262023. The reversal of 2666262020 is 202626662.

It is not an unprimeable number, because it can be changed into a prime (2666262023) 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, 3507860 + ... + 3508619.

It is an arithmetic number, because the mean of its divisors is an integer number (245576800).

Almost surely, 2^2666262020 is an apocalyptic number.

2666262020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2666262020 is an abundant number, since it is smaller than the sum of its proper divisors (3227581180).

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

2666262020 is a wasteful number, since it uses less digits than its factorization.

2666262020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7016507 (or 7016505 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 2666262020 is about 51635.8598262874. The cubic root of 2666262020 is about 1386.6524035710.

Adding to 2666262020 its reverse (202626662), we get a palindrome (2868888682).

The spelling of 2666262020 in words is "two billion, six hundred sixty-six million, two hundred sixty-two thousand, twenty".