162273200651778 has 32 divisors (see below), whose sum is σ = 335874191630400. Its totient is φ = 52204618886336.

The previous prime is 162273200651693. The next prime is 162273200651797. The reversal of 162273200651778 is 877156002372261.

It is a happy number.

It is a super-2 number, since 2×162273200651778² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189203001 + ... + 190058732.

It is an arithmetic number, because the mean of its divisors is an integer number (10496068488450).

Almost surely, 2^{162273200651778} is an apocalyptic number.

162273200651778 is an abundant number, since it is smaller than the sum of its proper divisors (173600990978622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162273200651778 is a wasteful number, since it uses less digits than its factorization.

162273200651778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379264226.

The product of its (nonzero) digits is 11854080, while the sum is 57.

The spelling of 162273200651778 in words is "one hundred sixty-two trillion, two hundred seventy-three billion, two hundred million, six hundred fifty-one thousand, seven hundred seventy-eight".