666150656061 has 8 divisors (see below), whose sum is σ = 968946408864. Its totient is φ = 403727670320.

The previous prime is 666150656027. The next prime is 666150656107. The reversal of 666150656061 is 160656051666.

666150656061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 666150656061 - 2⁹ = 666150655549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 666150656061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666150656021) 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, 10093191726 + ... + 10093191791.

It is an arithmetic number, because the mean of its divisors is an integer number (121118301108).

Almost surely, 2^666150656061 is an apocalyptic number.

It is an amenable number.

666150656061 is a deficient number, since it is larger than the sum of its proper divisors (302795752803).

666150656061 is a wasteful number, since it uses less digits than its factorization.

666150656061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20186383531.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 666150656061 in words is "six hundred sixty-six billion, one hundred fifty million, six hundred fifty-six thousand, sixty-one".