221543757073564 has 48 divisors (see below), whose sum is σ = 414119982624768. Its totient is φ = 103461837228288.

The previous prime is 221543757073543. The next prime is 221543757073577. The reversal of 221543757073564 is 465370757345122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57291492 + ... + 61036075.

It is an arithmetic number, because the mean of its divisors is an integer number (8627499638016).

Almost surely, 2^{221543757073564} is an apocalyptic number.

It is an amenable number.

221543757073564 is a deficient number, since it is larger than the sum of its proper divisors (192576225551204).

221543757073564 is a wasteful number, since it uses less digits than its factorization.

221543757073564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118328074 (or 118328072 counting only the distinct ones).

The product of its (nonzero) digits is 148176000, while the sum is 61.

The spelling of 221543757073564 in words is "two hundred twenty-one trillion, five hundred forty-three billion, seven hundred fifty-seven million, seventy-three thousand, five hundred sixty-four".