2166696412 has 12 divisors (see below), whose sum is σ = 3855985560. Its totient is φ = 1064986256.

The previous prime is 2166696409. The next prime is 2166696437. The reversal of 2166696412 is 2146966612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4590223 + ... + 4590694.

It is an arithmetic number, because the mean of its divisors is an integer number (321332130).

Almost surely, 2^2166696412 is an apocalyptic number.

It is an amenable number.

2166696412 is a deficient number, since it is larger than the sum of its proper divisors (1689289148).

2166696412 is a wasteful number, since it uses less digits than its factorization.

2166696412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9180980 (or 9180978 counting only the distinct ones).

The product of its digits is 186624, while the sum is 43.

The square root of 2166696412 is about 46547.7863276010. The cubic root of 2166696412 is about 1293.9952676430.

The spelling of 2166696412 in words is "two billion, one hundred sixty-six million, six hundred ninety-six thousand, four hundred twelve".