1666414236652 has 48 divisors (see below), whose sum is σ = 3233413481760. Its totient is φ = 745148096000.

The previous prime is 1666414236623. The next prime is 1666414236673. The reversal of 1666414236652 is 2566324146661.

It is a self number, because there is not a number n which added to its sum of digits gives 1666414236652.

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, 308599 + ... + 1851502.

It is an arithmetic number, because the mean of its divisors is an integer number (67362780870).

Almost surely, 2^{1666414236652} is an apocalyptic number.

It is an amenable number.

1666414236652 is a deficient number, since it is larger than the sum of its proper divisors (1566999245108).

1666414236652 is a wasteful number, since it uses less digits than its factorization.

1666414236652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160402 (or 2160400 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 52.

The spelling of 1666414236652 in words is "one trillion, six hundred sixty-six billion, four hundred fourteen million, two hundred thirty-six thousand, six hundred fifty-two".