166948377122 has 18 divisors (see below), whose sum is σ = 251501094129. Its totient is φ = 83116217920.

The previous prime is 166948377121. The next prime is 166948377161. The reversal of 166948377122 is 221773849661.

It can be written as a sum of positive squares in 2 ways, for example, as 106431885121 + 60516492001 = 326239^2 + 246001^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=288919.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166948377121) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 179707154 + ... + 179708082.

Almost surely, 2^166948377122 is an apocalyptic number.

166948377122 is a deficient number, since it is larger than the sum of its proper divisors (84552717007).

166948377122 is an frugal number, since it uses more digits than its factorization.

166948377122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482 (or 1242 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 56.

The spelling of 166948377122 in words is "one hundred sixty-six billion, nine hundred forty-eight million, three hundred seventy-seven thousand, one hundred twenty-two".