16478886578 has 32 divisors (see below), whose sum is σ = 30953484288. Its totient is φ = 6392048400.

The previous prime is 16478886559. The next prime is 16478886647. The reversal of 16478886578 is 87568887461.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200738 + ... + 270653.

It is an arithmetic number, because the mean of its divisors is an integer number (967296384).

Almost surely, 2^16478886578 is an apocalyptic number.

16478886578 is a deficient number, since it is larger than the sum of its proper divisors (14474597710).

16478886578 is a wasteful number, since it uses less digits than its factorization.

16478886578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471638.

The product of its digits is 144506880, while the sum is 68.

The spelling of 16478886578 in words is "sixteen billion, four hundred seventy-eight million, eight hundred eighty-six thousand, five hundred seventy-eight".