164966637 has 8 divisors (see below), whose sum is σ = 239951520. Its totient is φ = 99979760.

The previous prime is 164966617. The next prime is 164966647. The reversal of 164966637 is 736669461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164966637 - 2¹⁰ = 164965613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164966617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2499462 + ... + 2499527.

It is an arithmetic number, because the mean of its divisors is an integer number (29993940).

Almost surely, 2^164966637 is an apocalyptic number.

It is an amenable number.

164966637 is a deficient number, since it is larger than the sum of its proper divisors (74984883).

164966637 is a wasteful number, since it uses less digits than its factorization.

164966637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999003.

The product of its digits is 979776, while the sum is 48.

The square root of 164966637 is about 12843.9338599979. The cubic root of 164966637 is about 548.4436851552.

It can be divided in two parts, 1649 and 66637, that added together give a palindrome (68286).

The spelling of 164966637 in words is "one hundred sixty-four million, nine hundred sixty-six thousand, six hundred thirty-seven".