22518030642 has 16 divisors (see below), whose sum is σ = 45578665440. Its totient is φ = 7415576192.

The previous prime is 22518030641. The next prime is 22518030707. The reversal of 22518030642 is 24603081522.

It is not an unprimeable number, because it can be changed into a prime (22518030641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22607967 + ... + 22608962.

It is an arithmetic number, because the mean of its divisors is an integer number (2848666590).

Almost surely, 2^22518030642 is an apocalyptic number.

22518030642 is an abundant number, since it is smaller than the sum of its proper divisors (23060634798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22518030642 is a wasteful number, since it uses less digits than its factorization.

22518030642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45217017.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 22518030642 in words is "twenty-two billion, five hundred eighteen million, thirty thousand, six hundred forty-two".