216706193356530 has 32 divisors (see below), whose sum is σ = 527420143836288. Its totient is φ = 56974398252800.

The previous prime is 216706193356511. The next prime is 216706193356577. The reversal of 216706193356530 is 35653391607612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50869996311 + ... + 50870000570.

It is an arithmetic number, because the mean of its divisors is an integer number (16481879494884).

Almost surely, 2^{216706193356530} is an apocalyptic number.

216706193356530 is an abundant number, since it is smaller than the sum of its proper divisors (310713950479758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216706193356530 is a wasteful number, since it uses less digits than its factorization.

216706193356530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101739996962.

The product of its (nonzero) digits is 18370800, while the sum is 57.

The spelling of 216706193356530 in words is "two hundred sixteen trillion, seven hundred six billion, one hundred ninety-three million, three hundred fifty-six thousand, five hundred thirty".