3660156156666 has 32 divisors (see below), whose sum is σ = 7330302936000. Its totient is φ = 1218388089600.

The previous prime is 3660156156637. The next prime is 3660156156739. The reversal of 3660156156666 is 6666516510663.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12822060 + ... + 13104408.

It is an arithmetic number, because the mean of its divisors is an integer number (229071966750).

Almost surely, 2^{3660156156666} is an apocalyptic number.

3660156156666 is an abundant number, since it is smaller than the sum of its proper divisors (3670146779334).

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

3660156156666 is a wasteful number, since it uses less digits than its factorization.

3660156156666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285294.

The product of its (nonzero) digits is 20995200, while the sum is 57.

The spelling of 3660156156666 in words is "three trillion, six hundred sixty billion, one hundred fifty-six million, one hundred fifty-six thousand, six hundred sixty-six".