16120365155 has 16 divisors (see below), whose sum is σ = 19685118720. Its totient is φ = 12670191072.

The previous prime is 16120365139. The next prime is 16120365197. The reversal of 16120365155 is 55156302161.

It is a Cunningham number, because it is equal to 126966²-1.

It is a cyclic number.

It is not a de Polignac number, because 16120365155 - 2⁴ = 16120365139 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63482 + ... + 190448.

It is an arithmetic number, because the mean of its divisors is an integer number (1230319920).

Almost surely, 2^16120365155 is an apocalyptic number.

16120365155 is a deficient number, since it is larger than the sum of its proper divisors (3564753565).

16120365155 is a wasteful number, since it uses less digits than its factorization.

16120365155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127418.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 16120365155 in words is "sixteen billion, one hundred twenty million, three hundred sixty-five thousand, one hundred fifty-five".