2116381732 has 6 divisors (see below), whose sum is σ = 3703668038. Its totient is φ = 1058190864.

The previous prime is 2116381727. The next prime is 2116381733. The reversal of 2116381732 is 2371836112.

It can be written as a sum of positive squares in only one way, i.e., 1519752256 + 596629476 = 38984^2 + 24426^2 .

It is not an unprimeable number, because it can be changed into a prime (2116381733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264547713 + ... + 264547720.

Almost surely, 2^2116381732 is an apocalyptic number.

It is an amenable number.

2116381732 is a deficient number, since it is larger than the sum of its proper divisors (1587286306).

2116381732 is a wasteful number, since it uses less digits than its factorization.

2116381732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529095437 (or 529095435 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 2116381732 is about 46004.1490737520. The cubic root of 2116381732 is about 1283.9004016584.

The spelling of 2116381732 in words is "two billion, one hundred sixteen million, three hundred eighty-one thousand, seven hundred thirty-two".