220810816898 has 24 divisors (see below), whose sum is σ = 405570891600. Its totient is φ = 89652511368.

The previous prime is 220810816861. The next prime is 220810816991. The reversal of 220810816898 is 898618018022.

It is a happy number.

220810816898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59292128 + ... + 59295851.

It is an arithmetic number, because the mean of its divisors is an integer number (16898787150).

Almost surely, 2^220810816898 is an apocalyptic number.

220810816898 is a deficient number, since it is larger than the sum of its proper divisors (184760074702).

220810816898 is a wasteful number, since it uses less digits than its factorization.

220810816898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118588014 (or 118588007 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 53.

The spelling of 220810816898 in words is "two hundred twenty billion, eight hundred ten million, eight hundred sixteen thousand, eight hundred ninety-eight".