220806887554 has 8 divisors (see below), whose sum is σ = 361320361488. Its totient is φ = 100366767060.

The previous prime is 220806887537. The next prime is 220806887579. The reversal of 220806887554 is 455788608022.

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

It is a junction number, because it is equal to n+sod(n) for n = 220806887495 and 220806887504.

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, 5018338332 + ... + 5018338375.

It is an arithmetic number, because the mean of its divisors is an integer number (45165045186).

Almost surely, 2^220806887554 is an apocalyptic number.

220806887554 is a deficient number, since it is larger than the sum of its proper divisors (140513473934).

220806887554 is a wasteful number, since it uses less digits than its factorization.

220806887554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10036676720.

The product of its (nonzero) digits is 8601600, while the sum is 55.

The spelling of 220806887554 in words is "two hundred twenty billion, eight hundred six million, eight hundred eighty-seven thousand, five hundred fifty-four".