220211030640566 has 12 divisors (see below), whose sum is σ = 384245777954628. Its totient is φ = 94376155988772.

The previous prime is 220211030640553. The next prime is 220211030640641. The reversal of 220211030640566 is 665046030112022.

It is a super-4 number, since 4×220211030640566⁴ (a number of 58 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1123525666436 + ... + 1123525666631.

It is an arithmetic number, because the mean of its divisors is an integer number (32020481496219).

Almost surely, 2^{220211030640566} is an apocalyptic number.

220211030640566 is a deficient number, since it is larger than the sum of its proper divisors (164034747314062).

220211030640566 is a wasteful number, since it uses less digits than its factorization.

220211030640566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247051333083 (or 2247051333076 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 220211030640566 its reverse (665046030112022), we get a palindrome (885257060752588).

The spelling of 220211030640566 in words is "two hundred twenty trillion, two hundred eleven billion, thirty million, six hundred forty thousand, five hundred sixty-six".