221775660246153 has 16 divisors (see below), whose sum is σ = 318448356699200. Its totient is φ = 136476791607744.

The previous prime is 221775660246113. The next prime is 221775660246157. The reversal of 221775660246153 is 351642066577122.

It is not a de Polignac number, because 221775660246153 - 2¹⁰ = 221775660245129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221775660246093 and 221775660246102.

It is not an unprimeable number, because it can be changed into a prime (221775660246157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1063078 + ... + 21087471.

It is an arithmetic number, because the mean of its divisors is an integer number (19903022293700).

Almost surely, 2^{221775660246153} is an apocalyptic number.

It is an amenable number.

221775660246153 is a deficient number, since it is larger than the sum of its proper divisors (96672696453047).

221775660246153 is a wasteful number, since it uses less digits than its factorization.

221775660246153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22407288.

The product of its (nonzero) digits is 25401600, while the sum is 57.

The spelling of 221775660246153 in words is "two hundred twenty-one trillion, seven hundred seventy-five billion, six hundred sixty million, two hundred forty-six thousand, one hundred fifty-three".