221452466421463 has 8 divisors (see below), whose sum is σ = 234246325412448. Its totient is φ = 208922398337664.

The previous prime is 221452466421409. The next prime is 221452466421479. The reversal of 221452466421463 is 364124664254122.

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 221452466421463 - 2¹³ = 221452466413271 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 221452466421463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221452466421493) 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, 65947725070 + ... + 65947728427.

It is an arithmetic number, because the mean of its divisors is an integer number (29280790676556).

Almost surely, 2^{221452466421463} is an apocalyptic number.

221452466421463 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

221452466421463 is a deficient number, since it is larger than the sum of its proper divisors (12793858990985).

221452466421463 is a wasteful number, since it uses less digits than its factorization.

221452466421463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131895453593.

The product of its digits is 13271040, while the sum is 52.

The spelling of 221452466421463 in words is "two hundred twenty-one trillion, four hundred fifty-two billion, four hundred sixty-six million, four hundred twenty-one thousand, four hundred sixty-three".