164614123543 has 4 divisors (see below), whose sum is σ = 168629102208. Its totient is φ = 160599144880.

The previous prime is 164614123511. The next prime is 164614123547. The reversal of 164614123543 is 345321416461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164614123543 - 2⁵ = 164614123511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164614123496 and 164614123505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164614123547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2007489271 + ... + 2007489352.

It is an arithmetic number, because the mean of its divisors is an integer number (42157275552).

Almost surely, 2^164614123543 is an apocalyptic number.

164614123543 is a deficient number, since it is larger than the sum of its proper divisors (4014978665).

164614123543 is an equidigital number, since it uses as much as digits as its factorization.

164614123543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014978664.

The product of its digits is 207360, while the sum is 40.

The spelling of 164614123543 in words is "one hundred sixty-four billion, six hundred fourteen million, one hundred twenty-three thousand, five hundred forty-three".