164505520318 has 8 divisors (see below), whose sum is σ = 248121586440. Its totient is φ = 81798324840.

The previous prime is 164505520271. The next prime is 164505520331. The reversal of 164505520318 is 813025505461.

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

It is a super-2 number, since 2×164505520318² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227217208 + ... + 227217931.

It is an arithmetic number, because the mean of its divisors is an integer number (31015198305).

Almost surely, 2^164505520318 is an apocalyptic number.

164505520318 is a deficient number, since it is larger than the sum of its proper divisors (83616066122).

164505520318 is a wasteful number, since it uses less digits than its factorization.

164505520318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454435322.

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 164505520318 in words is "one hundred sixty-four billion, five hundred five million, five hundred twenty thousand, three hundred eighteen".