216436495 has 16 divisors (see below), whose sum is σ = 290995488. Its totient is φ = 153152640.

The previous prime is 216436487. The next prime is 216436523. The reversal of 216436495 is 594634612.

It is not a de Polignac number, because 216436495 - 2³ = 216436487 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 15 ways as a sum of consecutive naturals, for example, 51144 + ... + 55213.

It is an arithmetic number, because the mean of its divisors is an integer number (18187218).

Almost surely, 2^216436495 is an apocalyptic number.

216436495 is a deficient number, since it is larger than the sum of its proper divisors (74558993).

216436495 is a wasteful number, since it uses less digits than its factorization.

216436495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106410.

The product of its digits is 155520, while the sum is 40.

The square root of 216436495 is about 14711.7808235441. The cubic root of 216436495 is about 600.4038900973.

The spelling of 216436495 in words is "two hundred sixteen million, four hundred thirty-six thousand, four hundred ninety-five".