220546530210261 has 128 divisors (see below), whose sum is σ = 313427990937600. Its totient is φ = 137753034854400.

The previous prime is 220546530210239. The next prime is 220546530210263. The reversal of 220546530210261 is 162012035645022.

It is not a de Polignac number, because 220546530210261 - 2¹⁸ = 220546529948117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220546530210263) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 69638940700 + ... + 69638943866.

It is an arithmetic number, because the mean of its divisors is an integer number (2448656179200).

Almost surely, 2^{220546530210261} is an apocalyptic number.

It is an amenable number.

220546530210261 is a deficient number, since it is larger than the sum of its proper divisors (92881460727339).

220546530210261 is a wasteful number, since it uses less digits than its factorization.

220546530210261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087.

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 220546530210261 its reverse (162012035645022), we get a palindrome (382558565855283).

The spelling of 220546530210261 in words is "two hundred twenty trillion, five hundred forty-six billion, five hundred thirty million, two hundred ten thousand, two hundred sixty-one".