164081656 has 16 divisors (see below), whose sum is σ = 308251440. Its totient is φ = 81881280.

The previous prime is 164081651. The next prime is 164081689. The reversal of 164081656 is 656180461.

164081656 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164081651) 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, 15516 + ... + 23851.

It is an arithmetic number, because the mean of its divisors is an integer number (19265715).

Almost surely, 2^164081656 is an apocalyptic number.

It is an amenable number.

164081656 is a deficient number, since it is larger than the sum of its proper divisors (144169784).

164081656 is a wasteful number, since it uses less digits than its factorization.

164081656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39894 (or 39890 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 164081656 is about 12809.4362092951. The cubic root of 164081656 is about 547.4611980869.

The spelling of 164081656 in words is "one hundred sixty-four million, eighty-one thousand, six hundred fifty-six".