165224506254212 has 6 divisors (see below), whose sum is σ = 289142885944878. Its totient is φ = 82612253127104.

The previous prime is 165224506254187. The next prime is 165224506254251. The reversal of 165224506254212 is 212452605422561.

It can be written as a sum of positive squares in only one way, i.e., 150241305231616 + 14983201022596 = 12257296^2 + 3870814^2 .

It is a super-4 number, since 4×165224506254212⁴ (a number of 58 digits) contains 4444 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 as a sum of consecutive naturals, namely, 20653063281773 + ... + 20653063281780.

It is an arithmetic number, because the mean of its divisors is an integer number (48190480990813).

Almost surely, 2^{165224506254212} is an apocalyptic number.

It is an amenable number.

165224506254212 is a deficient number, since it is larger than the sum of its proper divisors (123918379690666).

165224506254212 is a wasteful number, since it uses less digits than its factorization.

165224506254212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41306126563557 (or 41306126563555 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 47.

The spelling of 165224506254212 in words is "one hundred sixty-five trillion, two hundred twenty-four billion, five hundred six million, two hundred fifty-four thousand, two hundred twelve".