164643102321 has 8 divisors (see below), whose sum is σ = 220977939264. Its totient is φ = 109035166800.

The previous prime is 164643102301. The next prime is 164643102331. The reversal of 164643102321 is 123201346461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164643102321 - 2⁵ = 164643102289 is a prime.

It is a super-2 number, since 2×164643102321² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164643102301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181724826 + ... + 181725731.

It is an arithmetic number, because the mean of its divisors is an integer number (27622242408).

Almost surely, 2^164643102321 is an apocalyptic number.

It is an amenable number.

164643102321 is a deficient number, since it is larger than the sum of its proper divisors (56334836943).

164643102321 is a wasteful number, since it uses less digits than its factorization.

164643102321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363450711.

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 164643102321 its reverse (123201346461), we get a palindrome (287844448782).

The spelling of 164643102321 in words is "one hundred sixty-four billion, six hundred forty-three million, one hundred two thousand, three hundred twenty-one".