164462102323021 has 16 divisors (see below), whose sum is σ = 166784204580336. Its totient is φ = 162155276107776.

The previous prime is 164462102322979. The next prime is 164462102323033. The reversal of 164462102323021 is 120323201264461.

It can be written as a sum of positive squares in 8 ways, for example, as 53322329301796 + 111139773021225 = 7302214^2 + 10542285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164462102323021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164462102393021) 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, 564991111 + ... + 565282123.

It is an arithmetic number, because the mean of its divisors is an integer number (10424012786271).

Almost surely, 2^{164462102323021} is an apocalyptic number.

It is an amenable number.

164462102323021 is a deficient number, since it is larger than the sum of its proper divisors (2322102257315).

164462102323021 is a wasteful number, since it uses less digits than its factorization.

164462102323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317232.

The product of its (nonzero) digits is 82944, while the sum is 37.

Adding to 164462102323021 its reverse (120323201264461), we get a palindrome (284785303587482).

The spelling of 164462102323021 in words is "one hundred sixty-four trillion, four hundred sixty-two billion, one hundred two million, three hundred twenty-three thousand, twenty-one".