164627656 has 8 divisors (see below), whose sum is σ = 308676870. Its totient is φ = 82313824.

The previous prime is 164627633. The next prime is 164627657. The reversal of 164627656 is 656726461.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 153512100 + 11115556 = 12390^2 + 3334^2 .

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

It is not an unprimeable number, because it can be changed into a prime (164627657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10289221 + ... + 10289236.

Almost surely, 2^164627656 is an apocalyptic number.

It is an amenable number.

164627656 is a deficient number, since it is larger than the sum of its proper divisors (144049214).

164627656 is a wasteful number, since it uses less digits than its factorization.

164627656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20578463 (or 20578459 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The square root of 164627656 is about 12830.7309222819. The cubic root of 164627656 is about 548.0677718232.

The spelling of 164627656 in words is "one hundred sixty-four million, six hundred twenty-seven thousand, six hundred fifty-six".