16687083478 has 16 divisors (see below), whose sum is σ = 26982246816. Its totient is φ = 7694248320.

The previous prime is 16687083433. The next prime is 16687083493. The reversal of 16687083478 is 87438078661.

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 7 ways as a sum of consecutive naturals, for example, 284451 + ... + 338062.

It is an arithmetic number, because the mean of its divisors is an integer number (1686390426).

Almost surely, 2^16687083478 is an apocalyptic number.

16687083478 is a deficient number, since it is larger than the sum of its proper divisors (10295163338).

16687083478 is a wasteful number, since it uses less digits than its factorization.

16687083478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623559.

The product of its (nonzero) digits is 10838016, while the sum is 58.

The spelling of 16687083478 in words is "sixteen billion, six hundred eighty-seven million, eighty-three thousand, four hundred seventy-eight".