216352151059396 has 243 divisors, whose sum is σ = 446545314092199. Its totient is φ = 91642417785600.

The previous prime is 216352151059381. The next prime is 216352151059403. The reversal of 216352151059396 is 693950151253612.

It is a happy number.

The square root of 216352151059396 is 14708914.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 148325946219396 + 68026204840000 = 12178914^2 + 8247800^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 216352151059396.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 305151129490 + ... + 305151130198.

Almost surely, 2^{216352151059396} is an apocalyptic number.

216352151059396 is the 14708914-th square number.

It is an amenable number.

216352151059396 is an abundant number, since it is smaller than the sum of its proper divisors (230193163032803).

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

216352151059396 is an equidigital number, since it uses as much as digits as its factorization.

216352151059396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 13122000, while the sum is 58.

The spelling of 216352151059396 in words is "two hundred sixteen trillion, three hundred fifty-two billion, one hundred fifty-one million, fifty-nine thousand, three hundred ninety-six".