216177085 has 8 divisors (see below), whose sum is σ = 259773696. Its totient is φ = 172700880.

The previous prime is 216177061. The next prime is 216177103. The reversal of 216177085 is 580771612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 216177085 - 2²⁷ = 81959357 is a prime.

It is a Duffinian number.

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, 26101 + ... + 33370.

It is an arithmetic number, because the mean of its divisors is an integer number (32471712).

Almost surely, 2^216177085 is an apocalyptic number.

It is an amenable number.

216177085 is a deficient number, since it is larger than the sum of its proper divisors (43596611).

216177085 is an equidigital number, since it uses as much as digits as its factorization.

216177085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60203.

The product of its (nonzero) digits is 23520, while the sum is 37.

The square root of 216177085 is about 14702.9617764585. The cubic root of 216177085 is about 600.1639228040.

The spelling of 216177085 in words is "two hundred sixteen million, one hundred seventy-seven thousand, eighty-five".