1421755332166 has 32 divisors (see below), whose sum is σ = 2436146889120. Its totient is φ = 616486181376.

The previous prime is 1421755332143. The next prime is 1421755332211. The reversal of 1421755332166 is 6612335571241.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2641276 + ... + 3133663.

It is an arithmetic number, because the mean of its divisors is an integer number (76129590285).

Almost surely, 2^{1421755332166} is an apocalyptic number.

1421755332166 is a deficient number, since it is larger than the sum of its proper divisors (1014391556954).

1421755332166 is a wasteful number, since it uses less digits than its factorization.

1421755332166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5775528.

The product of its digits is 907200, while the sum is 46.

The spelling of 1421755332166 in words is "one trillion, four hundred twenty-one billion, seven hundred fifty-five million, three hundred thirty-two thousand, one hundred sixty-six".