16726244672 has 14 divisors (see below), whose sum is σ = 33191141898. Its totient is φ = 8363122304.

The previous prime is 16726244671. The next prime is 16726244747. The reversal of 16726244672 is 27644262761.

It can be written as a sum of positive squares in only one way, i.e., 13730214976 + 2996029696 = 117176^2 + 54736^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16726244671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130673723 + ... + 130673850.

Almost surely, 2^16726244672 is an apocalyptic number.

It is an amenable number.

16726244672 is a deficient number, since it is larger than the sum of its proper divisors (16464897226).

16726244672 is an equidigital number, since it uses as much as digits as its factorization.

16726244672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261347585 (or 261347575 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 47.

The spelling of 16726244672 in words is "sixteen billion, seven hundred twenty-six million, two hundred forty-four thousand, six hundred seventy-two".