162207778445 has 8 divisors (see below), whose sum is σ = 194849802720. Its totient is φ = 129632577040.

The previous prime is 162207778429. The next prime is 162207778451. The reversal of 162207778445 is 544877702261.

It is a happy number.

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

It is not a de Polignac number, because 162207778445 - 2⁴ = 162207778429 is a prime.

It is a super-2 number, since 2×162207778445² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 16700375 + ... + 16710084.

It is an arithmetic number, because the mean of its divisors is an integer number (24356225340).

Almost surely, 2^162207778445 is an apocalyptic number.

It is an amenable number.

162207778445 is a deficient number, since it is larger than the sum of its proper divisors (32642024275).

162207778445 is an equidigital number, since it uses as much as digits as its factorization.

162207778445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33411435.

The product of its (nonzero) digits is 5268480, while the sum is 53.

The spelling of 162207778445 in words is "one hundred sixty-two billion, two hundred seven million, seven hundred seventy-eight thousand, four hundred forty-five".