216352755670 has 32 divisors (see below), whose sum is σ = 391567097376. Its totient is φ = 86068320000.

The previous prime is 216352755617. The next prime is 216352755709. The reversal of 216352755670 is 76557253612.

It is a happy 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, 1635610 + ... + 1762930.

It is an arithmetic number, because the mean of its divisors is an integer number (12236471793).

Almost surely, 2^216352755670 is an apocalyptic number.

216352755670 is a deficient number, since it is larger than the sum of its proper divisors (175214341706).

216352755670 is a wasteful number, since it uses less digits than its factorization.

216352755670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128256.

The product of its (nonzero) digits is 2646000, while the sum is 49.

The spelling of 216352755670 in words is "two hundred sixteen billion, three hundred fifty-two million, seven hundred fifty-five thousand, six hundred seventy".