2054106516623 has 4 divisors (see below), whose sum is σ = 2347550304720. Its totient is φ = 1760662728528.

The previous prime is 2054106516619. The next prime is 2054106516659. The reversal of 2054106516623 is 3266156014502.

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 2054106516623 - 2² = 2054106516619 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 (2054106516023) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 146721894038 + ... + 146721894051.

It is an arithmetic number, because the mean of its divisors is an integer number (586887576180).

Almost surely, 2^{2054106516623} is an apocalyptic number.

2054106516623 is a deficient number, since it is larger than the sum of its proper divisors (293443788097).

2054106516623 is an equidigital number, since it uses as much as digits as its factorization.

2054106516623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293443788096.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 2054106516623 in words is "two trillion, fifty-four billion, one hundred six million, five hundred sixteen thousand, six hundred twenty-three".