16278222140 has 24 divisors (see below), whose sum is σ = 35286986112. Its totient is φ = 6301247040.

The previous prime is 16278222011. The next prime is 16278222157. The reversal of 16278222140 is 4122287261.

It is a self number, because there is not a number n which added to its sum of digits gives 16278222140.

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, 13126979 + ... + 13128218.

It is an arithmetic number, because the mean of its divisors is an integer number (1470291088).

Almost surely, 2^16278222140 is an apocalyptic number.

16278222140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16278222140 is an abundant number, since it is smaller than the sum of its proper divisors (19008763972).

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

16278222140 is a wasteful number, since it uses less digits than its factorization.

16278222140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26255237 (or 26255235 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The spelling of 16278222140 in words is "sixteen billion, two hundred seventy-eight million, two hundred twenty-two thousand, one hundred forty".