221447653350552 has 48 divisors (see below), whose sum is σ = 602034494901840. Its totient is φ = 73535215681728.

The previous prime is 221447653350533. The next prime is 221447653350559. The reversal of 221447653350552 is 255053356744122.

221447653350552 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 4 + 7 + 6 + 5 + 33 + 50 + 552 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221447653350559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5847246943 + ... + 5847284814.

It is an arithmetic number, because the mean of its divisors is an integer number (12542385310455).

Almost surely, 2^{221447653350552} is an apocalyptic number.

It is an amenable number.

221447653350552 is an abundant number, since it is smaller than the sum of its proper divisors (380586841551288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221447653350552 is a wasteful number, since it uses less digits than its factorization.

221447653350552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11694532032 (or 11694532025 counting only the distinct ones).

The product of its (nonzero) digits is 30240000, while the sum is 54.

The spelling of 221447653350552 in words is "two hundred twenty-one trillion, four hundred forty-seven billion, six hundred fifty-three million, three hundred fifty thousand, five hundred fifty-two".