16447126545407 has 4 divisors (see below), whose sum is σ = 16447822802640. Its totient is φ = 16446430288176.

The previous prime is 16447126545397. The next prime is 16447126545413. The reversal of 16447126545407 is 70454562174461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16447126545407 - 2⁴ = 16447126545391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16447126545467) 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, 348093182 + ... + 348140427.

It is an arithmetic number, because the mean of its divisors is an integer number (4111955700660).

Almost surely, 2^{16447126545407} is an apocalyptic number.

16447126545407 is a deficient number, since it is larger than the sum of its proper divisors (696257233).

16447126545407 is an equidigital number, since it uses as much as digits as its factorization.

16447126545407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696257232.

The product of its (nonzero) digits is 22579200, while the sum is 56.

The spelling of 16447126545407 in words is "sixteen trillion, four hundred forty-seven billion, one hundred twenty-six million, five hundred forty-five thousand, four hundred seven".