16678060815 has 64 divisors (see below), whose sum is σ = 29433341952. Its totient is φ = 8014272000.

The previous prime is 16678060807. The next prime is 16678060871. The reversal of 16678060815 is 51806087661.

It is not a de Polignac number, because 16678060815 - 2³ = 16678060807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1392382 + ... + 1404308.

It is an arithmetic number, because the mean of its divisors is an integer number (459895968).

Almost surely, 2^16678060815 is an apocalyptic number.

16678060815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16678060815 is a deficient number, since it is larger than the sum of its proper divisors (12755281137).

16678060815 is a wasteful number, since it uses less digits than its factorization.

16678060815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12120.

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 16678060815 in words is "sixteen billion, six hundred seventy-eight million, sixty thousand, eight hundred fifteen".