164190616 has 8 divisors (see below), whose sum is σ = 307857420. Its totient is φ = 82095304.

The previous prime is 164190613. The next prime is 164190623. The reversal of 164190616 is 616091461.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164190613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10261906 + ... + 10261921.

Almost surely, 2^164190616 is an apocalyptic number.

It is an amenable number.

164190616 is a deficient number, since it is larger than the sum of its proper divisors (143666804).

164190616 is a wasteful number, since it uses less digits than its factorization.

164190616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20523833 (or 20523829 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 164190616 is about 12813.6886180366. The cubic root of 164190616 is about 547.5823535621.

The spelling of 164190616 in words is "one hundred sixty-four million, one hundred ninety thousand, six hundred sixteen".