164122984705 has 4 divisors (see below), whose sum is σ = 196947581652. Its totient is φ = 131298387760.

The previous prime is 164122984681. The next prime is 164122984709. The reversal of 164122984705 is 507489221461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 507489221461 = 2069 ⋅245282369.

It can be written as a sum of positive squares in 2 ways, for example, as 119794208769 + 44328775936 = 346113^2 + 210544^2 .

It is not a de Polignac number, because 164122984705 - 2¹⁹ = 164122460417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164122984709) 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, 16412298466 + ... + 16412298475.

It is an arithmetic number, because the mean of its divisors is an integer number (49236895413).

Almost surely, 2^164122984705 is an apocalyptic number.

It is an amenable number.

164122984705 is a deficient number, since it is larger than the sum of its proper divisors (32824596947).

164122984705 is an equidigital number, since it uses as much as digits as its factorization.

164122984705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32824596946.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 164122984705 in words is "one hundred sixty-four billion, one hundred twenty-two million, nine hundred eighty-four thousand, seven hundred five".