16207540673 has 2 divisors, whose sum is σ = 16207540674. Its totient is φ = 16207540672.

The previous prime is 16207540669. The next prime is 16207540781. The reversal of 16207540673 is 37604570261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12456345664 + 3751195009 = 111608^2 + 61247^2 .

It is a cyclic number.

It is not a de Polignac number, because 16207540673 - 2² = 16207540669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16207540673.

It is not a weakly prime, because it can be changed into another prime (16207540603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8103770336 + 8103770337.

It is an arithmetic number, because the mean of its divisors is an integer number (8103770337).

Almost surely, 2^16207540673 is an apocalyptic number.

It is an amenable number.

16207540673 is a deficient number, since it is larger than the sum of its proper divisors (1).

16207540673 is an equidigital number, since it uses as much as digits as its factorization.

16207540673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 16207540673 in words is "sixteen billion, two hundred seven million, five hundred forty thousand, six hundred seventy-three".