162166501182061 has 4 divisors (see below), whose sum is σ = 162167389272000. Its totient is φ = 162165613092124.

The previous prime is 162166501182029. The next prime is 162166501182139. The reversal of 162166501182061 is 160281105661261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 162166501182061 - 2⁵ = 162166501182029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162166501182461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443771011 + ... + 444136288.

It is an arithmetic number, because the mean of its divisors is an integer number (40541847318000).

Almost surely, 2^{162166501182061} is an apocalyptic number.

It is an amenable number.

162166501182061 is a deficient number, since it is larger than the sum of its proper divisors (888089939).

162166501182061 is an equidigital number, since it uses as much as digits as its factorization.

162166501182061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888089938.

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 162166501182061 in words is "one hundred sixty-two trillion, one hundred sixty-six billion, five hundred one million, one hundred eighty-two thousand, sixty-one".