16285720055 has 16 divisors (see below), whose sum is σ = 22246424064. Its totient is φ = 11329195680.

The previous prime is 16285720051. The next prime is 16285720063. The reversal of 16285720055 is 55002758261.

It is not a de Polignac number, because 16285720055 - 2² = 16285720051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16285719994 and 16285720021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16285720051) 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, 6435779 + ... + 6438308.

It is an arithmetic number, because the mean of its divisors is an integer number (1390401504).

Almost surely, 2^16285720055 is an apocalyptic number.

16285720055 is a deficient number, since it is larger than the sum of its proper divisors (5960704009).

16285720055 is a wasteful number, since it uses less digits than its factorization.

16285720055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12874126.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 16285720055 in words is "sixteen billion, two hundred eighty-five million, seven hundred twenty thousand, fifty-five".