2066111157 has 16 divisors (see below), whose sum is σ = 3102197760. Its totient is φ = 1211794800.

The previous prime is 2066111123. The next prime is 2066111213. The reversal of 2066111157 is 7511116602.

It is not a de Polignac number, because 2066111157 - 2¹² = 2066107061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066111107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1008807 + ... + 1010852.

It is an arithmetic number, because the mean of its divisors is an integer number (193887360).

Almost surely, 2^2066111157 is an apocalyptic number.

It is an amenable number.

2066111157 is a deficient number, since it is larger than the sum of its proper divisors (1036086603).

2066111157 is a wasteful number, since it uses less digits than its factorization.

2066111157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019704.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 2066111157 is about 45454.4954542452. The cubic root of 2066111157 is about 1273.6533071881.

Adding to 2066111157 its reverse (7511116602), we get a palindrome (9577227759).

Subtracting 2066111157 from its reverse (7511116602), we obtain a palindrome (5445005445).

The spelling of 2066111157 in words is "two billion, sixty-six million, one hundred eleven thousand, one hundred fifty-seven".