16278873120 has 72 divisors (see below), whose sum is σ = 55551659436. Its totient is φ = 4341032448.

The previous prime is 16278873089. The next prime is 16278873151. The reversal of 16278873120 is 2137887261.

16278873120 is a `hidden beast` number, since 1 + 627 + 8 + 8 + 7 + 3 + 12 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (16278873089) and next prime (16278873151).

It can be written as a sum of positive squares in 2 ways, for example, as 14593606416 + 1685266704 = 120804^2 + 41052^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5650947 + ... + 5653826.

Almost surely, 2^16278873120 is an apocalyptic number.

16278873120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16278873120 is an abundant number, since it is smaller than the sum of its proper divisors (39272786316).

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

16278873120 is a wasteful number, since it uses less digits than its factorization.

16278873120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11304794 (or 11304783 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 16278873120 in words is "sixteen billion, two hundred seventy-eight million, eight hundred seventy-three thousand, one hundred twenty".