164466223730 has 8 divisors (see below), whose sum is σ = 296039202732. Its totient is φ = 65786489488.

The previous prime is 164466223711. The next prime is 164466223739. The reversal of 164466223730 is 37322664461.

It can be written as a sum of positive squares in 2 ways, for example, as 154506383329 + 9959840401 = 393073^2 + 99799^2 .

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

It is a super-2 number, since 2×164466223730² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164466223739) 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, 8223311177 + ... + 8223311196.

Almost surely, 2^164466223730 is an apocalyptic number.

164466223730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164466223730 is a deficient number, since it is larger than the sum of its proper divisors (131572979002).

164466223730 is a wasteful number, since it uses less digits than its factorization.

164466223730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16446622380.

The product of its (nonzero) digits is 870912, while the sum is 44.

The spelling of 164466223730 in words is "one hundred sixty-four billion, four hundred sixty-six million, two hundred twenty-three thousand, seven hundred thirty".