164169868547 has 16 divisors (see below), whose sum is σ = 175559076000. Its totient is φ = 152975347200.

The previous prime is 164169868529. The next prime is 164169868553. The reversal of 164169868547 is 745868961461.

It is a cyclic number.

It is not a de Polignac number, because 164169868547 - 2¹² = 164169864451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164169865547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2376704 + ... + 2444802.

It is an arithmetic number, because the mean of its divisors is an integer number (10972442250).

Almost surely, 2^164169868547 is an apocalyptic number.

164169868547 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

164169868547 is a deficient number, since it is larger than the sum of its proper divisors (11389207453).

164169868547 is a wasteful number, since it uses less digits than its factorization.

164169868547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69526.

The product of its digits is 69672960, while the sum is 65.

The spelling of 164169868547 in words is "one hundred sixty-four billion, one hundred sixty-nine million, eight hundred sixty-eight thousand, five hundred forty-seven".