216495070 has 16 divisors (see below), whose sum is σ = 425117808. Its totient is φ = 78725440.

The previous prime is 216495061. The next prime is 216495143. The reversal of 216495070 is 70594612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983959 + ... + 984178.

It is an arithmetic number, because the mean of its divisors is an integer number (26569863).

Almost surely, 2^216495070 is an apocalyptic number.

216495070 is a deficient number, since it is larger than the sum of its proper divisors (208622738).

216495070 is a wasteful number, since it uses less digits than its factorization.

216495070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968155.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 216495070 is about 14713.7714403888. The cubic root of 216495070 is about 600.4580483786.

The spelling of 216495070 in words is "two hundred sixteen million, four hundred ninety-five thousand, seventy".