164521595145 has 8 divisors (see below), whose sum is σ = 263234552256. Its totient is φ = 87744850736.

The previous prime is 164521595131. The next prime is 164521595149. The reversal of 164521595145 is 541595125461.

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

It is a cyclic number.

It is not a de Polignac number, because 164521595145 - 2⁴ = 164521595129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164521595094 and 164521595103.

It is not an unprimeable number, because it can be changed into a prime (164521595149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5484053157 + ... + 5484053186.

It is an arithmetic number, because the mean of its divisors is an integer number (32904319032).

Almost surely, 2^164521595145 is an apocalyptic number.

164521595145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164521595145 is a deficient number, since it is larger than the sum of its proper divisors (98712957111).

164521595145 is a wasteful number, since it uses less digits than its factorization.

164521595145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10968106351.

The product of its digits is 1080000, while the sum is 48.

The spelling of 164521595145 in words is "one hundred sixty-four billion, five hundred twenty-one million, five hundred ninety-five thousand, one hundred forty-five".