2055420161447 has 4 divisors (see below), whose sum is σ = 2055433392936. Its totient is φ = 2055406929960.

The previous prime is 2055420161441. The next prime is 2055420161449. The reversal of 2055420161447 is 7441610245502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2055420161447 - 2⁶ = 2055420161383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055420161441) by changing a digit.

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, 6379928 + ... + 6694349.

It is an arithmetic number, because the mean of its divisors is an integer number (513858348234).

Almost surely, 2^{2055420161447} is an apocalyptic number.

2055420161447 is a deficient number, since it is larger than the sum of its proper divisors (13231489).

2055420161447 is a wasteful number, since it uses less digits than its factorization.

2055420161447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13231488.

The product of its (nonzero) digits is 268800, while the sum is 41.

The spelling of 2055420161447 in words is "two trillion, fifty-five billion, four hundred twenty million, one hundred sixty-one thousand, four hundred forty-seven".