208162454543 has 2 divisors, whose sum is σ = 208162454544. Its totient is φ = 208162454542.

The previous prime is 208162454509. The next prime is 208162454581. The reversal of 208162454543 is 345454261802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 208162454543 - 2¹⁶ = 208162389007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 208162454494 and 208162454503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208162454243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104081227271 + 104081227272.

It is an arithmetic number, because the mean of its divisors is an integer number (104081227272).

Almost surely, 2^208162454543 is an apocalyptic number.

208162454543 is a deficient number, since it is larger than the sum of its proper divisors (1).

208162454543 is an equidigital number, since it uses as much as digits as its factorization.

208162454543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 208162454543 in words is "two hundred eight billion, one hundred sixty-two million, four hundred fifty-four thousand, five hundred forty-three".