164384661 has 24 divisors (see below), whose sum is σ = 263195904. Its totient is φ = 90901440.

The previous prime is 164384629. The next prime is 164384677. The reversal of 164384661 is 166483461.

It is not a de Polignac number, because 164384661 - 2⁵ = 164384629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164384161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13480 + ... + 22593.

It is an arithmetic number, because the mean of its divisors is an integer number (10966496).

Almost surely, 2^164384661 is an apocalyptic number.

It is an amenable number.

164384661 is a deficient number, since it is larger than the sum of its proper divisors (98811243).

164384661 is a wasteful number, since it uses less digits than its factorization.

164384661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36121 (or 36114 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 164384661 is about 12821.2581675903. The cubic root of 164384661 is about 547.7979846159.

The spelling of 164384661 in words is "one hundred sixty-four million, three hundred eighty-four thousand, six hundred sixty-one".