164545478579 has 8 divisors (see below), whose sum is σ = 165659806800. Its totient is φ = 163431283936.

The previous prime is 164545478569. The next prime is 164545478597. The reversal of 164545478579 is 975874545461.

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 164545478579 - 2³² = 160250511283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164545478509) 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, 4585184 + ... + 4620930.

It is an arithmetic number, because the mean of its divisors is an integer number (20707475850).

Almost surely, 2^164545478579 is an apocalyptic number.

164545478579 is a deficient number, since it is larger than the sum of its proper divisors (1114328221).

164545478579 is a wasteful number, since it uses less digits than its factorization.

164545478579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66789.

The product of its digits is 169344000, while the sum is 65.

The spelling of 164545478579 in words is "one hundred sixty-four billion, five hundred forty-five million, four hundred seventy-eight thousand, five hundred seventy-nine".