16639484347 has 2 divisors, whose sum is σ = 16639484348. Its totient is φ = 16639484346.

The previous prime is 16639484339. The next prime is 16639484429. The reversal of 16639484347 is 74348493661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16639484347 - 2³ = 16639484339 is a prime.

It is not a weakly prime, because it can be changed into another prime (16639484317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8319742173 + 8319742174.

It is an arithmetic number, because the mean of its divisors is an integer number (8319742174).

Almost surely, 2^16639484347 is an apocalyptic number.

16639484347 is a deficient number, since it is larger than the sum of its proper divisors (1).

16639484347 is an equidigital number, since it uses as much as digits as its factorization.

16639484347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10450944, while the sum is 55.

The spelling of 16639484347 in words is "sixteen billion, six hundred thirty-nine million, four hundred eighty-four thousand, three hundred forty-seven".