165500670002 has 8 divisors (see below), whose sum is σ = 248500005996. Its totient is φ = 82667334672.

The previous prime is 165500669981. The next prime is 165500670019. The reversal of 165500670002 is 200076005561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 165495189721 + 5480281 = 406811^2 + 2341^2 .

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

It is a super-2 number, since 2×165500670002² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41497673 + ... + 41501660.

Almost surely, 2^165500670002 is an apocalyptic number.

165500670002 is a deficient number, since it is larger than the sum of its proper divisors (82999335994).

165500670002 is an equidigital number, since it uses as much as digits as its factorization.

165500670002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83000332.

The product of its (nonzero) digits is 12600, while the sum is 32.

Adding to 165500670002 its reverse (200076005561), we get a palindrome (365576675563).

The spelling of 165500670002 in words is "one hundred sixty-five billion, five hundred million, six hundred seventy thousand, two".