16060506521 has 2 divisors, whose sum is σ = 16060506522. Its totient is φ = 16060506520.

The previous prime is 16060506463. The next prime is 16060506541. The reversal of 16060506521 is 12560506061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10309559296 + 5750947225 = 101536^2 + 75835^2 .

It is an emirp because it is prime and its reverse (12560506061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16060506521 - 2²⁶ = 15993397657 is a prime.

It is a super-2 number, since 2×16060506521² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16060506541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8030253260 + 8030253261.

It is an arithmetic number, because the mean of its divisors is an integer number (8030253261).

Almost surely, 2^16060506521 is an apocalyptic number.

It is an amenable number.

16060506521 is a deficient number, since it is larger than the sum of its proper divisors (1).

16060506521 is an equidigital number, since it uses as much as digits as its factorization.

16060506521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 16060506521 in words is "sixteen billion, sixty million, five hundred six thousand, five hundred twenty-one".