166722522056 has 16 divisors (see below), whose sum is σ = 317007613440. Its totient is φ = 82187158480.

The previous prime is 166722522053. The next prime is 166722522067. The reversal of 166722522056 is 650225227661.

It is a junction number, because it is equal to n+sod(n) for n = 166722521998 and 166722522016.

It is not an unprimeable number, because it can be changed into a prime (166722522053) 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, 146762216 + ... + 146763351.

It is an arithmetic number, because the mean of its divisors is an integer number (19812975840).

Almost surely, 2^166722522056 is an apocalyptic number.

It is an amenable number.

166722522056 is a deficient number, since it is larger than the sum of its proper divisors (150285091384).

166722522056 is a wasteful number, since it uses less digits than its factorization.

166722522056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293525644 (or 293525640 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 166722522056 in words is "one hundred sixty-six billion, seven hundred twenty-two million, five hundred twenty-two thousand, fifty-six".