8216624270401 has 4 divisors (see below), whose sum is σ = 8217489460932. Its totient is φ = 8215759079872.

The previous prime is 8216624270363. The next prime is 8216624270419. The reversal of 8216624270401 is 1040724266128.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2076754799025 + 6139869471376 = 1441095^2 + 2477876^2 .

It is a cyclic number.

It is not a de Polignac number, because 8216624270401 - 2¹⁹ = 8216623746113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8216624270801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432581020 + ... + 432600013.

It is an arithmetic number, because the mean of its divisors is an integer number (2054372365233).

Almost surely, 2^{8216624270401} is an apocalyptic number.

It is an amenable number.

8216624270401 is a deficient number, since it is larger than the sum of its proper divisors (865190531).

8216624270401 is an equidigital number, since it uses as much as digits as its factorization.

8216624270401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865190530.

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 8216624270401 in words is "eight trillion, two hundred sixteen billion, six hundred twenty-four million, two hundred seventy thousand, four hundred one".