166012722 has 48 divisors (see below), whose sum is σ = 366208128. Its totient is φ = 54345600.

The previous prime is 166012711. The next prime is 166012727. The reversal of 166012722 is 227210661.

166012722 is a `hidden beast` number, since 16 + 601 + 27 + 22 = 666.

166012722 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (166012727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279658 + ... + 280250.

It is an arithmetic number, because the mean of its divisors is an integer number (7629336).

Almost surely, 2^166012722 is an apocalyptic number.

166012722 is an abundant number, since it is smaller than the sum of its proper divisors (200195406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166012722 is a wasteful number, since it uses less digits than its factorization.

166012722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 166012722 is about 12884.5924266156. The cubic root of 166012722 is about 549.6005054882.

The spelling of 166012722 in words is "one hundred sixty-six million, twelve thousand, seven hundred twenty-two".