2101066140 has 24 divisors (see below), whose sum is σ = 5882985360. Its totient is φ = 560284288.

The previous prime is 2101066139. The next prime is 2101066141. The reversal of 2101066140 is 416601012.

It is an interprime number because it is at equal distance from previous prime (2101066139) and next prime (2101066141).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101066141) 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, 17508825 + ... + 17508944.

It is an arithmetic number, because the mean of its divisors is an integer number (245124390).

Almost surely, 2^2101066140 is an apocalyptic number.

2101066140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101066140 is an abundant number, since it is smaller than the sum of its proper divisors (3781919220).

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

2101066140 is a wasteful number, since it uses less digits than its factorization.

2101066140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35017781 (or 35017779 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2101066140 is about 45837.3880145891. The cubic root of 2101066140 is about 1280.7958389069.

Adding to 2101066140 its reverse (416601012), we get a palindrome (2517667152).

The spelling of 2101066140 in words is "two billion, one hundred one million, sixty-six thousand, one hundred forty".