16445255405 has 16 divisors (see below), whose sum is σ = 20900514240. Its totient is φ = 12379130112.

The previous prime is 16445255401. The next prime is 16445255413. The reversal of 16445255405 is 50455254461.

It is a cyclic number.

It is not a de Polignac number, because 16445255405 - 2² = 16445255401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16445255401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339302 + ... + 384728.

It is an arithmetic number, because the mean of its divisors is an integer number (1306282140).

Almost surely, 2^16445255405 is an apocalyptic number.

It is an amenable number.

16445255405 is a deficient number, since it is larger than the sum of its proper divisors (4455258835).

16445255405 is a wasteful number, since it uses less digits than its factorization.

16445255405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49708.

The product of its (nonzero) digits is 480000, while the sum is 41.

The spelling of 16445255405 in words is "sixteen billion, four hundred forty-five million, two hundred fifty-five thousand, four hundred five".