16436020253 has 16 divisors (see below), whose sum is σ = 16758669312. Its totient is φ = 16116198000.

The previous prime is 16436020241. The next prime is 16436020327. The reversal of 16436020253 is 35202063461.

It is a cyclic number.

It is not a de Polignac number, because 16436020253 - 2²⁰ = 16434971677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16436020213) 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, 13351148 + ... + 13352378.

It is an arithmetic number, because the mean of its divisors is an integer number (1047416832).

Almost surely, 2^16436020253 is an apocalyptic number.

It is an amenable number.

16436020253 is a deficient number, since it is larger than the sum of its proper divisors (322649059).

16436020253 is a wasteful number, since it uses less digits than its factorization.

16436020253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 16436020253 in words is "sixteen billion, four hundred thirty-six million, twenty thousand, two hundred fifty-three".