220013029666 has 8 divisors (see below), whose sum is σ = 330027327900. Its totient is φ = 110003920368.

The previous prime is 220013029633. The next prime is 220013029681. The reversal of 220013029666 is 666920310022.

It can be written as a sum of positive squares in 2 ways, for example, as 188851954041 + 31161075625 = 434571^2 + 176525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1189441 + ... + 1361908.

Almost surely, 2^220013029666 is an apocalyptic number.

220013029666 is a deficient number, since it is larger than the sum of its proper divisors (110014298234).

220013029666 is a wasteful number, since it uses less digits than its factorization.

220013029666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594468.

The product of its (nonzero) digits is 46656, while the sum is 37.

Adding to 220013029666 its reverse (666920310022), we get a palindrome (886933339688).

The spelling of 220013029666 in words is "two hundred twenty billion, thirteen million, twenty-nine thousand, six hundred sixty-six".