16723788212 has 12 divisors (see below), whose sum is σ = 30057619620. Its totient is φ = 8135896896.

The previous prime is 16723788181. The next prime is 16723788217. The reversal of 16723788212 is 21288732761.

It can be written as a sum of positive squares in 2 ways, for example, as 13949027236 + 2774760976 = 118106^2 + 52676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16723788217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56499137 + ... + 56499432.

It is an arithmetic number, because the mean of its divisors is an integer number (2504801635).

Almost surely, 2^16723788212 is an apocalyptic number.

It is an amenable number.

16723788212 is a deficient number, since it is larger than the sum of its proper divisors (13333831408).

16723788212 is a wasteful number, since it uses less digits than its factorization.

16723788212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112998610 (or 112998608 counting only the distinct ones).

The product of its digits is 451584, while the sum is 47.

The spelling of 16723788212 in words is "sixteen billion, seven hundred twenty-three million, seven hundred eighty-eight thousand, two hundred twelve".