216315530263461 has 8 divisors (see below), whose sum is σ = 288424518426880. Its totient is φ = 144208447804512.

The previous prime is 216315530263439. The next prime is 216315530263477. The reversal of 216315530263461 is 164362035513612.

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

It is not a de Polignac number, because 216315530263461 - 2¹⁰ = 216315530262437 is a prime.

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 216315530263461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216315530263061) 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, 476161240 + ... + 476615313.

It is an arithmetic number, because the mean of its divisors is an integer number (36053064803360).

Almost surely, 2^{216315530263461} is an apocalyptic number.

It is an amenable number.

216315530263461 is a deficient number, since it is larger than the sum of its proper divisors (72108988163419).

216315530263461 is an equidigital number, since it uses as much as digits as its factorization.

216315530263461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952852235.

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 216315530263461 in words is "two hundred sixteen trillion, three hundred fifteen billion, five hundred thirty million, two hundred sixty-three thousand, four hundred sixty-one".