221533606552376 has 16 divisors (see below), whose sum is σ = 439809365949840. Its totient is φ = 104251108965760.

The previous prime is 221533606552369. The next prime is 221533606552439. The reversal of 221533606552376 is 673255606335122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814461788660 + ... + 814461788931.

It is an arithmetic number, because the mean of its divisors is an integer number (27488085371865).

Almost surely, 2^{221533606552376} is an apocalyptic number.

It is an amenable number.

221533606552376 is a deficient number, since it is larger than the sum of its proper divisors (218275759397464).

221533606552376 is a wasteful number, since it uses less digits than its factorization.

221533606552376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628923577614 (or 1628923577610 counting only the distinct ones).

The product of its (nonzero) digits is 40824000, while the sum is 56.

The spelling of 221533606552376 in words is "two hundred twenty-one trillion, five hundred thirty-three billion, six hundred six million, five hundred fifty-two thousand, three hundred seventy-six".