162166049 has 4 divisors (see below), whose sum is σ = 162751764. Its totient is φ = 161580336.

The previous prime is 162166033. The next prime is 162166051. The reversal of 162166049 is 940661261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 940661261 = 157 ⋅5991473.

It can be written as a sum of positive squares in 2 ways, for example, as 67240000 + 94926049 = 8200^2 + 9743^2 .

It is a cyclic number.

It is not a de Polignac number, because 162166049 - 2⁴ = 162166033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162166649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292442 + ... + 292995.

It is an arithmetic number, because the mean of its divisors is an integer number (40687941).

Almost surely, 2^162166049 is an apocalyptic number.

It is an amenable number.

162166049 is a deficient number, since it is larger than the sum of its proper divisors (585715).

162166049 is an equidigital number, since it uses as much as digits as its factorization.

162166049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585714.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 162166049 is about 12734.4434114727. The cubic root of 162166049 is about 545.3223679886.

The spelling of 162166049 in words is "one hundred sixty-two million, one hundred sixty-six thousand, forty-nine".