221524243345064 has 32 divisors (see below), whose sum is σ = 453170626071840. Its totient is φ = 100681092196800.

The previous prime is 221524243345043. The next prime is 221524243345079. The reversal of 221524243345064 is 460543342425122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146062382 + ... + 147571229.

It is an arithmetic number, because the mean of its divisors is an integer number (14161582064745).

Almost surely, 2^{221524243345064} is an apocalyptic number.

It is an amenable number.

221524243345064 is an abundant number, since it is smaller than the sum of its proper divisors (231646382726776).

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

221524243345064 is a wasteful number, since it uses less digits than its factorization.

221524243345064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293642201 (or 293642197 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 47.

The spelling of 221524243345064 in words is "two hundred twenty-one trillion, five hundred twenty-four billion, two hundred forty-three million, three hundred forty-five thousand, sixty-four".