666051006 has 16 divisors (see below), whose sum is σ = 1360445184. Its totient is φ = 217293144.

The previous prime is 666050993. The next prime is 666051017. The reversal of 666051006 is 600150666.

It is a super-2 number, since 2×666051006² = 887247885187224072, which contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 1180660 + ... + 1181223.

It is an arithmetic number, because the mean of its divisors is an integer number (85027824).

Almost surely, 2^666051006 is an apocalyptic number.

666051006 is an abundant number, since it is smaller than the sum of its proper divisors (694394178).

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

666051006 is a wasteful number, since it uses less digits than its factorization.

666051006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361935.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 666051006 is about 25807.9640033847. The cubic root of 666051006 is about 873.3114673481.

The spelling of 666051006 in words is "six hundred sixty-six million, fifty-one thousand, six".