166451828 has 24 divisors (see below), whose sum is σ = 321838272. Its totient is φ = 74923904.

The previous prime is 166451821. The next prime is 166451843. The reversal of 166451828 is 828154661.

It is a super-2 number, since 2×166451828² = 55412422089083168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166451821) 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, 51650 + ... + 54777.

It is an arithmetic number, because the mean of its divisors is an integer number (13409928).

Almost surely, 2^166451828 is an apocalyptic number.

It is an amenable number.

166451828 is a deficient number, since it is larger than the sum of its proper divisors (155386444).

166451828 is a wasteful number, since it uses less digits than its factorization.

166451828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106471 (or 106469 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 166451828 is about 12901.6211384461. The cubic root of 166451828 is about 550.0846459253.

The spelling of 166451828 in words is "one hundred sixty-six million, four hundred fifty-one thousand, eight hundred twenty-eight".