164480657543 has 2 divisors, whose sum is σ = 164480657544. Its totient is φ = 164480657542.

The previous prime is 164480657531. The next prime is 164480657557. The reversal of 164480657543 is 345756084461.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164480657543 - 2¹⁴ = 164480641159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164480657563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82240328771 + 82240328772.

It is an arithmetic number, because the mean of its divisors is an integer number (82240328772).

Almost surely, 2^164480657543 is an apocalyptic number.

164480657543 is a deficient number, since it is larger than the sum of its proper divisors (1).

164480657543 is an equidigital number, since it uses as much as digits as its factorization.

164480657543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9676800, while the sum is 53.

The spelling of 164480657543 in words is "one hundred sixty-four billion, four hundred eighty million, six hundred fifty-seven thousand, five hundred forty-three".