164664255610 has 8 divisors (see below), whose sum is σ = 296395660116. Its totient is φ = 65865702240.

The previous prime is 164664255607. The next prime is 164664255643. The reversal of 164664255610 is 16552466461.

It can be written as a sum of positive squares in 2 ways, for example, as 138426411249 + 26237844361 = 372057^2 + 161981^2 .

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

It is a super-2 number, since 2×164664255610² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8233212771 + ... + 8233212790.

Almost surely, 2^164664255610 is an apocalyptic number.

164664255610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164664255610 is a deficient number, since it is larger than the sum of its proper divisors (131731404506).

164664255610 is a wasteful number, since it uses less digits than its factorization.

164664255610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16466425568.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 164664255610 in words is "one hundred sixty-four billion, six hundred sixty-four million, two hundred fifty-five thousand, six hundred ten".