16420707457 has 32 divisors (see below), whose sum is σ = 20997771264. Its totient is φ = 12470328000.

The previous prime is 16420707451. The next prime is 16420707481. The reversal of 16420707457 is 75470702461.

It is a cyclic number.

It is not a de Polignac number, because 16420707457 - 2¹⁵ = 16420674689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16420707451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 602908 + ... + 629554.

It is an arithmetic number, because the mean of its divisors is an integer number (656180352).

Almost surely, 2^16420707457 is an apocalyptic number.

It is an amenable number.

16420707457 is a deficient number, since it is larger than the sum of its proper divisors (4577063807).

16420707457 is a wasteful number, since it uses less digits than its factorization.

16420707457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26869.

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 16420707457 in words is "sixteen billion, four hundred twenty million, seven hundred seven thousand, four hundred fifty-seven".