666062072 has 32 divisors (see below), whose sum is σ = 1350854400. Its totient is φ = 306059904.

The previous prime is 666062071. The next prime is 666062087. The reversal of 666062072 is 270260666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666062071) 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, 9833 + ... + 37799.

It is an arithmetic number, because the mean of its divisors is an integer number (42214200).

Almost surely, 2^666062072 is an apocalyptic number.

It is an amenable number.

666062072 is an abundant number, since it is smaller than the sum of its proper divisors (684792328).

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

666062072 is a wasteful number, since it uses less digits than its factorization.

666062072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28215 (or 28211 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 666062072 is about 25808.1783936798. The cubic root of 666062072 is about 873.3163038201.

The spelling of 666062072 in words is "six hundred sixty-six million, sixty-two thousand, seventy-two".