2226161998 has 4 divisors (see below), whose sum is σ = 3339243000. Its totient is φ = 1113080998.

The previous prime is 2226161983. The next prime is 2226162031. The reversal of 2226161998 is 8991616222.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556540498 + ... + 556540501.

It is an arithmetic number, because the mean of its divisors is an integer number (834810750).

Almost surely, 2^2226161998 is an apocalyptic number.

2226161998 is a deficient number, since it is larger than the sum of its proper divisors (1113081002).

2226161998 is a wasteful number, since it uses less digits than its factorization.

2226161998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113081001.

The product of its digits is 186624, while the sum is 46.

The square root of 2226161998 is about 47182.2212067215. The cubic root of 2226161998 is about 1305.7266101288.

The spelling of 2226161998 in words is "two billion, two hundred twenty-six million, one hundred sixty-one thousand, nine hundred ninety-eight".