164399189088 has 48 divisors (see below), whose sum is σ = 445468778496. Its totient is φ = 53031995520.

The previous prime is 164399189077. The next prime is 164399189167. The reversal of 164399189088 is 880981993461.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27617856 + ... + 27623807.

It is an arithmetic number, because the mean of its divisors is an integer number (9280599552).

Almost surely, 2^164399189088 is an apocalyptic number.

It is an amenable number.

164399189088 is an abundant number, since it is smaller than the sum of its proper divisors (281069589408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164399189088 is a wasteful number, since it uses less digits than its factorization.

164399189088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55241707 (or 55241699 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 66.

The spelling of 164399189088 in words is "one hundred sixty-four billion, three hundred ninety-nine million, one hundred eighty-nine thousand, eighty-eight".