162172752705 has 12 divisors (see below), whose sum is σ = 281099438100. Its totient is φ = 86492134752.

The previous prime is 162172752691. The next prime is 162172752767. The reversal of 162172752705 is 507257271261.

162172752705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 74214835776 + 87957916929 = 272424^2 + 296577^2 .

It is not a de Polignac number, because 162172752705 - 2⁵ = 162172752673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 3603838949 = 162172752705 / (1 + 6 + 2 + 1 + 7 + 2 + 7 + 5 + 2 + 7 + 0 + 5).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1801919430 + ... + 1801919519.

It is an arithmetic number, because the mean of its divisors is an integer number (23424953175).

Almost surely, 2^162172752705 is an apocalyptic number.

162172752705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

162172752705 is a deficient number, since it is larger than the sum of its proper divisors (118926685395).

162172752705 is a wasteful number, since it uses less digits than its factorization.

162172752705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603838960 (or 3603838957 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 45.

The spelling of 162172752705 in words is "one hundred sixty-two billion, one hundred seventy-two million, seven hundred fifty-two thousand, seven hundred five".