206235716349 has 16 divisors (see below), whose sum is σ = 296340069312. Its totient is φ = 126825687168.

The previous prime is 206235716341. The next prime is 206235716411. The reversal of 206235716349 is 943617532602.

It is not a de Polignac number, because 206235716349 - 2³ = 206235716341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206235716298 and 206235716307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206235716341) 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, 1789227 + ... + 1901000.

It is an arithmetic number, because the mean of its divisors is an integer number (18521254332).

Almost surely, 2^206235716349 is an apocalyptic number.

It is an amenable number.

206235716349 is a deficient number, since it is larger than the sum of its proper divisors (90104352963).

206235716349 is a wasteful number, since it uses less digits than its factorization.

206235716349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691676.

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 206235716349 in words is "two hundred six billion, two hundred thirty-five million, seven hundred sixteen thousand, three hundred forty-nine".