164364641 has 8 divisors (see below), whose sum is σ = 187926144. Its totient is φ = 140823360.

The previous prime is 164364637. The next prime is 164364643. The reversal of 164364641 is 146463461.

It is a happy number.

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 164364641 - 2² = 164364637 is a prime.

It is a super-2 number, since 2×164364641² = 54031470422117762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164364643) 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, 22121 + ... + 28601.

It is an arithmetic number, because the mean of its divisors is an integer number (23490768).

Almost surely, 2^164364641 is an apocalyptic number.

It is an amenable number.

164364641 is a deficient number, since it is larger than the sum of its proper divisors (23561503).

164364641 is an equidigital number, since it uses as much as digits as its factorization.

164364641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10111.

The product of its digits is 41472, while the sum is 35.

The square root of 164364641 is about 12820.4774092075. The cubic root of 164364641 is about 547.7757453939.

The spelling of 164364641 in words is "one hundred sixty-four million, three hundred sixty-four thousand, six hundred forty-one".