1420266166445 has 24 divisors (see below), whose sum is σ = 1982640561408. Its totient is φ = 973864903200.

The previous prime is 1420266166439. The next prime is 1420266166453. The reversal of 1420266166445 is 5446616620241.

It is a de Polignac number, because none of the positive numbers 2^k-1420266166445 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420266166445.

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 23 ways as a sum of consecutive naturals, for example, 9290780 + ... + 9442410.

It is an arithmetic number, because the mean of its divisors is an integer number (82610023392).

Almost surely, 2^{1420266166445} is an apocalyptic number.

It is an amenable number.

1420266166445 is a deficient number, since it is larger than the sum of its proper divisors (562374394963).

1420266166445 is a wasteful number, since it uses less digits than its factorization.

1420266166445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189881 (or 189874 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 1420266166445 in words is "one trillion, four hundred twenty billion, two hundred sixty-six million, one hundred sixty-six thousand, four hundred forty-five".