162173136766 has 4 divisors (see below), whose sum is σ = 243259705152. Its totient is φ = 81086568382.

The previous prime is 162173136751. The next prime is 162173136767. The reversal of 162173136766 is 667631371261.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162173136767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40543284190 + ... + 40543284193.

It is an arithmetic number, because the mean of its divisors is an integer number (60814926288).

Almost surely, 2^162173136766 is an apocalyptic number.

162173136766 is a deficient number, since it is larger than the sum of its proper divisors (81086568386).

162173136766 is an equidigital number, since it uses as much as digits as its factorization.

162173136766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81086568385.

The product of its digits is 1143072, while the sum is 49.

The spelling of 162173136766 in words is "one hundred sixty-two billion, one hundred seventy-three million, one hundred thirty-six thousand, seven hundred sixty-six".