216086515 has 8 divisors (see below), whose sum is σ = 260803728. Its totient is φ = 171869280.

The previous prime is 216086503. The next prime is 216086527. The reversal of 216086515 is 515680612.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (216086503) and next prime (216086527).

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

It is not a de Polignac number, because 216086515 - 2⁵ = 216086483 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124041 + ... + 125770.

It is an arithmetic number, because the mean of its divisors is an integer number (32600466).

Almost surely, 2^216086515 is an apocalyptic number.

216086515 is a deficient number, since it is larger than the sum of its proper divisors (44717213).

216086515 is a wasteful number, since it uses less digits than its factorization.

216086515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249989.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 216086515 is about 14699.8814621071. The cubic root of 216086515 is about 600.0800957888.

The spelling of 216086515 in words is "two hundred sixteen million, eighty-six thousand, five hundred fifteen".