16191478205 has 16 divisors (see below), whose sum is σ = 22302433920. Its totient is φ = 11054238912.

The previous prime is 16191478189. The next prime is 16191478229. The reversal of 16191478205 is 50287419161.

It is a cyclic number.

It is not a de Polignac number, because 16191478205 - 2⁴ = 16191478189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1002059 + ... + 1018088.

It is an arithmetic number, because the mean of its divisors is an integer number (1393902120).

Almost surely, 2^16191478205 is an apocalyptic number.

It is an amenable number.

16191478205 is a deficient number, since it is larger than the sum of its proper divisors (6110955715).

16191478205 is a wasteful number, since it uses less digits than its factorization.

16191478205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020388.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 16191478205 in words is "sixteen billion, one hundred ninety-one million, four hundred seventy-eight thousand, two hundred five".