3666154620066 has 16 divisors (see below), whose sum is σ = 7385059668000. Its totient is φ = 1213259802048.

The previous prime is 3666154620043. The next prime is 3666154620131. The reversal of 3666154620066 is 6600264516663.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2197933591 + ... + 2197935258.

It is an arithmetic number, because the mean of its divisors is an integer number (461566229250).

Almost surely, 2^{3666154620066} is an apocalyptic number.

3666154620066 is an abundant number, since it is smaller than the sum of its proper divisors (3718905047934).

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

3666154620066 is a wasteful number, since it uses less digits than its factorization.

3666154620066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395868993.

The product of its (nonzero) digits is 5598720, while the sum is 51.

The spelling of 3666154620066 in words is "three trillion, six hundred sixty-six billion, one hundred fifty-four million, six hundred twenty thousand, sixty-six".