216010378 has 4 divisors (see below), whose sum is σ = 324015570. Its totient is φ = 108005188.

The previous prime is 216010369. The next prime is 216010391. The reversal of 216010378 is 873010612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 162384049 + 53626329 = 12743^2 + 7323^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54002593 + ... + 54002596.

Almost surely, 2^216010378 is an apocalyptic number.

216010378 is a deficient number, since it is larger than the sum of its proper divisors (108005192).

216010378 is a wasteful number, since it uses less digits than its factorization.

216010378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108005191.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 216010378 is about 14697.2915191882. The cubic root of 216010378 is about 600.0096091054.

The spelling of 216010378 in words is "two hundred sixteen million, ten thousand, three hundred seventy-eight".