164423710257422 has 32 divisors (see below), whose sum is σ = 320862982869504. Its totient is φ = 61275916864800.

The previous prime is 164423710257421. The next prime is 164423710257463. The reversal of 164423710257422 is 224752017324461.

It is a super-4 number, since 4×164423710257422⁴ (a number of 58 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164423710257421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23210571029 + ... + 23210578112.

It is an arithmetic number, because the mean of its divisors is an integer number (10026968214672).

Almost surely, 2^{164423710257422} is an apocalyptic number.

164423710257422 is a deficient number, since it is larger than the sum of its proper divisors (156439272612082).

164423710257422 is a wasteful number, since it uses less digits than its factorization.

164423710257422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46421149184.

The product of its (nonzero) digits is 4515840, while the sum is 50.

The spelling of 164423710257422 in words is "one hundred sixty-four trillion, four hundred twenty-three billion, seven hundred ten million, two hundred fifty-seven thousand, four hundred twenty-two".