221552715627263 has 8 divisors (see below), whose sum is σ = 221577079409280. Its totient is φ = 221528353148320.

The previous prime is 221552715627233. The next prime is 221552715627349. The reversal of 221552715627263 is 362726517255122.

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

It is a cyclic number.

It is not a de Polignac number, because 221552715627263 - 2²⁸ = 221552447191807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221552715627199 and 221552715627208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221552715627233) 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, 361506473 + ... + 362118813.

It is an arithmetic number, because the mean of its divisors is an integer number (27697134926160).

Almost surely, 2^{221552715627263} is an apocalyptic number.

221552715627263 is a deficient number, since it is larger than the sum of its proper divisors (24363782017).

221552715627263 is a wasteful number, since it uses less digits than its factorization.

221552715627263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651537.

The product of its digits is 21168000, while the sum is 56.

The spelling of 221552715627263 in words is "two hundred twenty-one trillion, five hundred fifty-two billion, seven hundred fifteen million, six hundred twenty-seven thousand, two hundred sixty-three".