2554146221623 has 4 divisors (see below), whose sum is σ = 2554568191368. Its totient is φ = 2553724251880.

The previous prime is 2554146221621. The next prime is 2554146221639. The reversal of 2554146221623 is 3261226414552.

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 2554146221623 - 2¹ = 2554146221621 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 2554146221623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2554146221621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210975793 + ... + 210987898.

It is an arithmetic number, because the mean of its divisors is an integer number (638642047842).

Almost surely, 2^{2554146221623} is an apocalyptic number.

2554146221623 is a deficient number, since it is larger than the sum of its proper divisors (421969745).

2554146221623 is an equidigital number, since it uses as much as digits as its factorization.

2554146221623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421969744.

The product of its digits is 691200, while the sum is 43.

The spelling of 2554146221623 in words is "two trillion, five hundred fifty-four billion, one hundred forty-six million, two hundred twenty-one thousand, six hundred twenty-three".