1406143541566 has 8 divisors (see below), whose sum is σ = 2110527834480. Its totient is φ = 702634263408.

The previous prime is 1406143541557. The next prime is 1406143541591. The reversal of 1406143541566 is 6651453416041.

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

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 218749671 + ... + 218756098.

It is an arithmetic number, because the mean of its divisors is an integer number (263815979310).

Almost surely, 2^{1406143541566} is an apocalyptic number.

1406143541566 is a deficient number, since it is larger than the sum of its proper divisors (704384292914).

1406143541566 is a wasteful number, since it uses less digits than its factorization.

1406143541566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437507378.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 1406143541566 in words is "one trillion, four hundred six billion, one hundred forty-three million, five hundred forty-one thousand, five hundred sixty-six".