16626222654 has 16 divisors (see below), whose sum is σ = 33253963392. Its totient is φ = 5541821208.

The previous prime is 16626222607. The next prime is 16626222661. The reversal of 16626222654 is 45622262661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119937 + ... + 218259.

It is an arithmetic number, because the mean of its divisors is an integer number (2078372712).

Almost surely, 2^16626222654 is an apocalyptic number.

16626222654 is an abundant number, since it is smaller than the sum of its proper divisors (16627740738).

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

16626222654 is a wasteful number, since it uses less digits than its factorization.

16626222654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126511.

The product of its digits is 414720, while the sum is 42.

The spelling of 16626222654 in words is "sixteen billion, six hundred twenty-six million, two hundred twenty-two thousand, six hundred fifty-four".