16140622218 has 32 divisors (see below), whose sum is σ = 37677809664. Its totient is φ = 4513486512.

The previous prime is 16140622207. The next prime is 16140622219. The reversal of 16140622218 is 81222604161.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16140622219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4086330 + ... + 4090277.

It is an arithmetic number, because the mean of its divisors is an integer number (1177431552).

Almost surely, 2^16140622218 is an apocalyptic number.

16140622218 is an abundant number, since it is smaller than the sum of its proper divisors (21537187446).

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

16140622218 is a wasteful number, since it uses less digits than its factorization.

16140622218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8176666.

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 16140622218 in words is "sixteen billion, one hundred forty million, six hundred twenty-two thousand, two hundred eighteen".