2105661796 has 48 divisors (see below), whose sum is σ = 4288356352. Its totient is φ = 886010400.

The previous prime is 2105661781. The next prime is 2105661821. The reversal of 2105661796 is 6971665012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 619261 + ... + 622651.

Almost surely, 2^2105661796 is an apocalyptic number.

It is an amenable number.

2105661796 is an abundant number, since it is smaller than the sum of its proper divisors (2182694556).

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

2105661796 is a wasteful number, since it uses less digits than its factorization.

2105661796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800 (or 3798 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 2105661796 is about 45887.4906265313. The cubic root of 2105661796 is about 1281.7289859141.

The spelling of 2105661796 in words is "two billion, one hundred five million, six hundred sixty-one thousand, seven hundred ninety-six".