221677052234553 has 48 divisors (see below), whose sum is σ = 326255712456960. Its totient is φ = 144999565427808.

The previous prime is 221677052234543. The next prime is 221677052234567. The reversal of 221677052234553 is 355432250776122.

221677052234553 is a `hidden beast` number, since 2 + 2 + 1 + 6 + 7 + 7 + 0 + 52 + 2 + 34 + 553 = 666.

It is not a de Polignac number, because 221677052234553 - 2¹³ = 221677052226361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221677052234553.

It is not an unprimeable number, because it can be changed into a prime (221677052234503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3365492326 + ... + 3365558192.

It is an arithmetic number, because the mean of its divisors is an integer number (6796994009520).

Almost surely, 2^{221677052234553} is an apocalyptic number.

It is an amenable number.

221677052234553 is a deficient number, since it is larger than the sum of its proper divisors (104578660222407).

221677052234553 is a wasteful number, since it uses less digits than its factorization.

221677052234553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78066 (or 78063 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 54.

The spelling of 221677052234553 in words is "two hundred twenty-one trillion, six hundred seventy-seven billion, fifty-two million, two hundred thirty-four thousand, five hundred fifty-three".