164401330 has 8 divisors (see below), whose sum is σ = 295922412. Its totient is φ = 65760528.

The previous prime is 164401301. The next prime is 164401331. The reversal of 164401330 is 33104461.

It can be written as a sum of positive squares in 2 ways, for example, as 155775361 + 8625969 = 12481^2 + 2937^2 .

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

It is a super-3 number, since 3×164401330³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (164401331) 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, 8220057 + ... + 8220076.

Almost surely, 2^164401330 is an apocalyptic number.

164401330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164401330 is a deficient number, since it is larger than the sum of its proper divisors (131521082).

164401330 is a wasteful number, since it uses less digits than its factorization.

164401330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16440140.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 164401330 is about 12821.9082043197. The cubic root of 164401330 is about 547.8165000011.

Adding to 164401330 its reverse (33104461), we get a palindrome (197505791).

The spelling of 164401330 in words is "one hundred sixty-four million, four hundred one thousand, three hundred thirty".