16215125473 has 2 divisors, whose sum is σ = 16215125474. Its totient is φ = 16215125472.

The previous prime is 16215125467. The next prime is 16215125489. The reversal of 16215125473 is 37452151261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13991814369 + 2223311104 = 118287^2 + 47152^2 .

It is a cyclic number.

It is not a de Polignac number, because 16215125473 - 2²⁹ = 15678254561 is a prime.

It is not a weakly prime, because it can be changed into another prime (16215120473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8107562736 + 8107562737.

It is an arithmetic number, because the mean of its divisors is an integer number (8107562737).

Almost surely, 2^16215125473 is an apocalyptic number.

It is an amenable number.

16215125473 is a deficient number, since it is larger than the sum of its proper divisors (1).

16215125473 is an equidigital number, since it uses as much as digits as its factorization.

16215125473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 37.

The spelling of 16215125473 in words is "sixteen billion, two hundred fifteen million, one hundred twenty-five thousand, four hundred seventy-three".