16564707225457 has 8 divisors (see below), whose sum is σ = 16791748509600. Its totient is φ = 16337669387040.

The previous prime is 16564707225421. The next prime is 16564707225499. The reversal of 16564707225457 is 75452270746561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16564707225457 - 2⁴³ = 7768614203249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16564707225395 and 16564707225404.

It is not an unprimeable number, because it can be changed into a prime (16564707222457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9700482 + ... + 11279572.

It is an arithmetic number, because the mean of its divisors is an integer number (2098968563700).

Almost surely, 2^{16564707225457} is an apocalyptic number.

It is an amenable number.

16564707225457 is a deficient number, since it is larger than the sum of its proper divisors (227041284143).

16564707225457 is a wasteful number, since it uses less digits than its factorization.

16564707225457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722863.

The product of its (nonzero) digits is 98784000, while the sum is 61.

The spelling of 16564707225457 in words is "sixteen trillion, five hundred sixty-four billion, seven hundred seven million, two hundred twenty-five thousand, four hundred fifty-seven".