162028779645 has 16 divisors (see below), whose sum is σ = 274495815360. Its totient is φ = 81332093184.

The previous prime is 162028779629. The next prime is 162028779721. The reversal of 162028779645 is 546977820261.

It is a happy number.

It is not a de Polignac number, because 162028779645 - 2⁴ = 162028779629 is a prime.

It is a congruent 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, 317703235 + ... + 317703744.

It is an arithmetic number, because the mean of its divisors is an integer number (17155988460).

Almost surely, 2^162028779645 is an apocalyptic number.

162028779645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

162028779645 is a deficient number, since it is larger than the sum of its proper divisors (112467035715).

162028779645 is a wasteful number, since it uses less digits than its factorization.

162028779645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635407004.

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 162028779645 in words is "one hundred sixty-two billion, twenty-eight million, seven hundred seventy-nine thousand, six hundred forty-five".