166600628 has 6 divisors (see below), whose sum is σ = 291551106. Its totient is φ = 83300312.

The previous prime is 166600597. The next prime is 166600633. The reversal of 166600628 is 826006661.

It can be written as a sum of positive squares in only one way, i.e., 91049764 + 75550864 = 9542^2 + 8692^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 20825075 + ... + 20825082.

It is an arithmetic number, because the mean of its divisors is an integer number (48591851).

Almost surely, 2^166600628 is an apocalyptic number.

It is an amenable number.

166600628 is a deficient number, since it is larger than the sum of its proper divisors (124950478).

166600628 is a wasteful number, since it uses less digits than its factorization.

166600628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41650161 (or 41650159 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 166600628 is about 12907.3865673885. The cubic root of 166600628 is about 550.2485135893.

The spelling of 166600628 in words is "one hundred sixty-six million, six hundred thousand, six hundred twenty-eight".