16278143240 has 32 divisors (see below), whose sum is σ = 36642646080. Its totient is φ = 6508266432.

The previous prime is 16278143213. The next prime is 16278143249. The reversal of 16278143240 is 4234187261.

It is a junction number, because it is equal to n+sod(n) for n = 16278143194 and 16278143203.

It is not an unprimeable number, because it can be changed into a prime (16278143249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4244 + ... + 180483.

It is an arithmetic number, because the mean of its divisors is an integer number (1145082690).

Almost surely, 2^16278143240 is an apocalyptic number.

16278143240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16278143240 is an abundant number, since it is smaller than the sum of its proper divisors (20364502840).

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

16278143240 is a wasteful number, since it uses less digits than its factorization.

16278143240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186941 (or 186937 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 16278143240 in words is "sixteen billion, two hundred seventy-eight million, one hundred forty-three thousand, two hundred forty".