162221667575266 has 12 divisors (see below), whose sum is σ = 263490223369842. Its totient is φ = 74871538880736.

The previous prime is 162221667575159. The next prime is 162221667575309. The reversal of 162221667575266 is 662575766122261.

It can be written as a sum of positive squares in 3 ways, for example, as 122535712072225 + 39685955503041 = 11069585^2 + 6299679^2 .

It is a junction number, because it is equal to n+sod(n) for n = 162221667575198 and 162221667575207.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 239972880691 + ... + 239972881366.

Almost surely, 2^{162221667575266} is an apocalyptic number.

162221667575266 is a deficient number, since it is larger than the sum of its proper divisors (101268555794576).

162221667575266 is a wasteful number, since it uses less digits than its factorization.

162221667575266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479945762085 (or 479945762072 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 64.

The spelling of 162221667575266 in words is "one hundred sixty-two trillion, two hundred twenty-one billion, six hundred sixty-seven million, five hundred seventy-five thousand, two hundred sixty-six".