2006657111 has 8 divisors (see below), whose sum is σ = 2012683680. Its totient is φ = 2000640928.

The previous prime is 2006657047. The next prime is 2006657119. The reversal of 2006657111 is 1117566002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2006657111 - 2⁶ = 2006657047 is a prime.

It is a super-2 number, since 2×2006657111² = 8053345522253732642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006657119) 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, 537710 + ... + 541428.

It is an arithmetic number, because the mean of its divisors is an integer number (251585460).

Almost surely, 2^2006657111 is an apocalyptic number.

2006657111 is a deficient number, since it is larger than the sum of its proper divisors (6026569).

2006657111 is an equidigital number, since it uses as much as digits as its factorization.

2006657111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 2006657111 is about 44795.7264814402. The cubic root of 2006657111 is about 1261.3174074678.

It can be divided in two parts, 20066 and 57111, that added together give a palindrome (77177).

The spelling of 2006657111 in words is "two billion, six million, six hundred fifty-seven thousand, one hundred eleven".