220550664446 has 16 divisors (see below), whose sum is σ = 378440561760. Its totient is φ = 94433286240.

The previous prime is 220550664409. The next prime is 220550664479. The reversal of 220550664446 is 644466055022.

It is a junction number, because it is equal to n+sod(n) for n = 220550664397 and 220550664406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7353425 + ... + 7383356.

It is an arithmetic number, because the mean of its divisors is an integer number (23652535110).

Almost surely, 2^220550664446 is an apocalyptic number.

220550664446 is a deficient number, since it is larger than the sum of its proper divisors (157889897314).

220550664446 is a wasteful number, since it uses less digits than its factorization.

220550664446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14737859.

The product of its (nonzero) digits is 1382400, while the sum is 44.

The spelling of 220550664446 in words is "two hundred twenty billion, five hundred fifty million, six hundred sixty-four thousand, four hundred forty-six".