16688128046 has 16 divisors (see below), whose sum is σ = 25437376080. Its totient is φ = 8209312320.

The previous prime is 16688128031. The next prime is 16688128057. The reversal of 16688128046 is 64082188661.

It is a junction number, because it is equal to n+sod(n) for n = 16688127985 and 16688128003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31436 + ... + 185376.

It is an arithmetic number, because the mean of its divisors is an integer number (1589836005).

Almost surely, 2^16688128046 is an apocalyptic number.

16688128046 is a deficient number, since it is larger than the sum of its proper divisors (8749248034).

16688128046 is a wasteful number, since it uses less digits than its factorization.

16688128046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154819.

The product of its (nonzero) digits is 884736, while the sum is 50.

The spelling of 16688128046 in words is "sixteen billion, six hundred eighty-eight million, one hundred twenty-eight thousand, forty-six".