16550144155 has 16 divisors (see below), whose sum is σ = 20770928640. Its totient is φ = 12635571168.

The previous prime is 16550144137. The next prime is 16550144209. The reversal of 16550144155 is 55144105561.

It is a cyclic number.

It is not a de Polignac number, because 16550144155 - 2¹⁵ = 16550111387 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, 113427 + ... + 214396.

It is an arithmetic number, because the mean of its divisors is an integer number (1298183040).

Almost surely, 2^16550144155 is an apocalyptic number.

16550144155 is a deficient number, since it is larger than the sum of its proper divisors (4220784485).

16550144155 is a wasteful number, since it uses less digits than its factorization.

16550144155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328290.

The product of its (nonzero) digits is 60000, while the sum is 37.

The spelling of 16550144155 in words is "sixteen billion, five hundred fifty million, one hundred forty-four thousand, one hundred fifty-five".