2131066616 has 32 divisors (see below), whose sum is σ = 4584371040. Its totient is φ = 909754368.

The previous prime is 2131066547. The next prime is 2131066631. The reversal of 2131066616 is 6166601312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59645 + ... + 88428.

It is an arithmetic number, because the mean of its divisors is an integer number (143261595).

Almost surely, 2^2131066616 is an apocalyptic number.

It is an amenable number.

2131066616 is an abundant number, since it is smaller than the sum of its proper divisors (2453304424).

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

2131066616 is a wasteful number, since it uses less digits than its factorization.

2131066616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148343 (or 148339 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 2131066616 is about 46163.4770787470. The cubic root of 2131066616 is about 1286.8630821639.

Adding to 2131066616 its reverse (6166601312), we get a palindrome (8297667928).

The spelling of 2131066616 in words is "two billion, one hundred thirty-one million, sixty-six thousand, six hundred sixteen".