2130680661 has 16 divisors (see below), whose sum is σ = 2936915520. Its totient is φ = 1373086080.

The previous prime is 2130680611. The next prime is 2130680707. The reversal of 2130680661 is 1660860312.

It is not a de Polignac number, because 2130680661 - 2⁶ = 2130680597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130680611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66055 + ... + 92868.

It is an arithmetic number, because the mean of its divisors is an integer number (183557220).

Almost surely, 2^2130680661 is an apocalyptic number.

It is an amenable number.

2130680661 is a deficient number, since it is larger than the sum of its proper divisors (806234859).

2130680661 is a wasteful number, since it uses less digits than its factorization.

2130680661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159076.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 2130680661 is about 46159.2965825954. The cubic root of 2130680661 is about 1286.7853900474.

The spelling of 2130680661 in words is "two billion, one hundred thirty million, six hundred eighty thousand, six hundred sixty-one".