164240777343 has 4 divisors (see below), whose sum is σ = 218987703128. Its totient is φ = 109493851560.

The previous prime is 164240777339. The next prime is 164240777347. The reversal of 164240777343 is 343777042461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343777042461 = 3 ⋅114592347487.

It is an interprime number because it is at equal distance from previous prime (164240777339) and next prime (164240777347).

It is not a de Polignac number, because 164240777343 - 2² = 164240777339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164240777292 and 164240777301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164240777347) 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, 27373462888 + ... + 27373462893.

It is an arithmetic number, because the mean of its divisors is an integer number (54746925782).

Almost surely, 2^164240777343 is an apocalyptic number.

164240777343 is a deficient number, since it is larger than the sum of its proper divisors (54746925785).

164240777343 is an equidigital number, since it uses as much as digits as its factorization.

164240777343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54746925784.

The product of its (nonzero) digits is 2370816, while the sum is 48.

The spelling of 164240777343 in words is "one hundred sixty-four billion, two hundred forty million, seven hundred seventy-seven thousand, three hundred forty-three".