16687083477 has 4 divisors (see below), whose sum is σ = 22249444640. Its totient is φ = 11124722316.

The previous prime is 16687083433. The next prime is 16687083493. The reversal of 16687083477 is 77438078661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 16687083477 - 2²² = 16682889173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16687083407) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2781180577 + ... + 2781180582.

It is an arithmetic number, because the mean of its divisors is an integer number (5562361160).

Almost surely, 2^16687083477 is an apocalyptic number.

It is an amenable number.

16687083477 is a deficient number, since it is larger than the sum of its proper divisors (5562361163).

16687083477 is an equidigital number, since it uses as much as digits as its factorization.

16687083477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5562361162.

The product of its (nonzero) digits is 9483264, while the sum is 57.

The spelling of 16687083477 in words is "sixteen billion, six hundred eighty-seven million, eighty-three thousand, four hundred seventy-seven".