16217055085 has 64 divisors (see below), whose sum is σ = 25648128000. Its totient is φ = 9536486400.

The previous prime is 16217055077. The next prime is 16217055121. The reversal of 16217055085 is 58055071261.

It is a happy number.

It is not a de Polignac number, because 16217055085 - 2³ = 16217055077 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, 1758316 + ... + 1767514.

It is an arithmetic number, because the mean of its divisors is an integer number (400752000).

Almost surely, 2^16217055085 is an apocalyptic number.

It is an amenable number.

16217055085 is a deficient number, since it is larger than the sum of its proper divisors (9431072915).

16217055085 is a wasteful number, since it uses less digits than its factorization.

16217055085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9482.

The product of its (nonzero) digits is 84000, while the sum is 40.

The spelling of 16217055085 in words is "sixteen billion, two hundred seventeen million, fifty-five thousand, eighty-five".