164695768 has 8 divisors (see below), whose sum is σ = 308804580. Its totient is φ = 82347880.

The previous prime is 164695763. The next prime is 164695771. The reversal of 164695768 is 867596461.

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

It is a super-4 number, since 4×164695768⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164695763) 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, 10293478 + ... + 10293493.

Almost surely, 2^164695768 is an apocalyptic number.

It is an amenable number.

164695768 is a deficient number, since it is larger than the sum of its proper divisors (144108812).

164695768 is a wasteful number, since it uses less digits than its factorization.

164695768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20586977 (or 20586973 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 164695768 is about 12833.3849003293. The cubic root of 164695768 is about 548.1433460937.

The spelling of 164695768 in words is "one hundred sixty-four million, six hundred ninety-five thousand, seven hundred sixty-eight".