1668155150 has 12 divisors (see below), whose sum is σ = 3102768672. Its totient is φ = 667262040.

The previous prime is 1668155149. The next prime is 1668155189. The reversal of 1668155150 is 515518661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16681502 + ... + 16681601.

It is an arithmetic number, because the mean of its divisors is an integer number (258564056).

Almost surely, 2^1668155150 is an apocalyptic number.

1668155150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1668155150 is a deficient number, since it is larger than the sum of its proper divisors (1434613522).

1668155150 is a wasteful number, since it uses less digits than its factorization.

1668155150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33363115 (or 33363110 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 38.

The square root of 1668155150 is about 40843.0551012042. The cubic root of 1668155150 is about 1185.9839549011.

The spelling of 1668155150 in words is "one billion, six hundred sixty-eight million, one hundred fifty-five thousand, one hundred fifty".