666066555010 has 16 divisors (see below), whose sum is σ = 1224428731776. Its totient is φ = 260757970288.

The previous prime is 666066554983. The next prime is 666066555017. The reversal of 666066555010 is 10555660666.

It is a super-2 number, since 2×666066555010² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (666066555017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708580972 + ... + 708581911.

It is an arithmetic number, because the mean of its divisors is an integer number (76526795736).

Almost surely, 2^666066555010 is an apocalyptic number.

666066555010 is a deficient number, since it is larger than the sum of its proper divisors (558362176766).

666066555010 is a wasteful number, since it uses less digits than its factorization.

666066555010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417162937.

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 666066555010 in words is "six hundred sixty-six billion, sixty-six million, five hundred fifty-five thousand, ten".