8821216630451 has 16 divisors (see below), whose sum is σ = 8880914165760. Its totient is φ = 8761758936480.

The previous prime is 8821216630411. The next prime is 8821216630459. The reversal of 8821216630451 is 1540366121288.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8821216630451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8821216630396 and 8821216630405.

It is not an unprimeable number, because it can be changed into a prime (8821216630459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118669586 + ... + 118743896.

It is an arithmetic number, because the mean of its divisors is an integer number (555057135360).

Almost surely, 2^{8821216630451} is an apocalyptic number.

8821216630451 is a deficient number, since it is larger than the sum of its proper divisors (59697535309).

8821216630451 is a wasteful number, since it uses less digits than its factorization.

8821216630451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75914.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 8821216630451 in words is "eight trillion, eight hundred twenty-one billion, two hundred sixteen million, six hundred thirty thousand, four hundred fifty-one".