216352755623 has 8 divisors (see below), whose sum is σ = 217543284000. Its totient is φ = 215163260928.

The previous prime is 216352755617. The next prime is 216352755709. The reversal of 216352755623 is 326557253612.

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

It is a cyclic number.

It is not a de Polignac number, because 216352755623 - 2⁶ = 216352755559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216352755323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163223 + ... + 677751.

It is an arithmetic number, because the mean of its divisors is an integer number (27192910500).

Almost surely, 2^216352755623 is an apocalyptic number.

216352755623 is a deficient number, since it is larger than the sum of its proper divisors (1190528377).

216352755623 is a wasteful number, since it uses less digits than its factorization.

216352755623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516841.

The product of its digits is 2268000, while the sum is 47.

The spelling of 216352755623 in words is "two hundred sixteen billion, three hundred fifty-two million, seven hundred fifty-five thousand, six hundred twenty-three".