164173869077 has 4 divisors (see below), whose sum is σ = 165767790240. Its totient is φ = 162579947916.

The previous prime is 164173869073. The next prime is 164173869121. The reversal of 164173869077 is 770968371461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 164173869077 - 2² = 164173869073 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164173869073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 796960427 + ... + 796960632.

It is an arithmetic number, because the mean of its divisors is an integer number (41441947560).

Almost surely, 2^164173869077 is an apocalyptic number.

It is an amenable number.

164173869077 is a deficient number, since it is larger than the sum of its proper divisors (1593921163).

164173869077 is a wasteful number, since it uses less digits than its factorization.

164173869077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593921162.

The product of its (nonzero) digits is 10668672, while the sum is 59.

The spelling of 164173869077 in words is "one hundred sixty-four billion, one hundred seventy-three million, eight hundred sixty-nine thousand, seventy-seven".