166256616 has 32 divisors (see below), whose sum is σ = 417486240. Its totient is φ = 55172928.

The previous prime is 166256611. The next prime is 166256663. The reversal of 166256616 is 616652661.

It is not an unprimeable number, because it can be changed into a prime (166256611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9811 + ... + 20706.

It is an arithmetic number, because the mean of its divisors is an integer number (13046445).

Almost surely, 2^166256616 is an apocalyptic number.

It is an amenable number.

166256616 is an abundant number, since it is smaller than the sum of its proper divisors (251229624).

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

166256616 is a wasteful number, since it uses less digits than its factorization.

166256616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30753 (or 30749 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 166256616 is about 12894.0535131509. The cubic root of 166256616 is about 549.8695183584.

The spelling of 166256616 in words is "one hundred sixty-six million, two hundred fifty-six thousand, six hundred sixteen".