16584780431207 has 4 divisors (see below), whose sum is σ = 16602405065976. Its totient is φ = 16567155796440.

The previous prime is 16584780431201. The next prime is 16584780431213. The reversal of 16584780431207 is 70213408748561.

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

It is an interprime number because it is at equal distance from previous prime (16584780431201) and next prime (16584780431213).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16584780431207 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 (16584780431201) 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, 8812315973 + ... + 8812317854.

It is an arithmetic number, because the mean of its divisors is an integer number (4150601266494).

Almost surely, 2^{16584780431207} is an apocalyptic number.

16584780431207 is a deficient number, since it is larger than the sum of its proper divisors (17624634769).

16584780431207 is an equidigital number, since it uses as much as digits as its factorization.

16584780431207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17624634768.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 16584780431207 in words is "sixteen trillion, five hundred eighty-four billion, seven hundred eighty million, four hundred thirty-one thousand, two hundred seven".