554300661321 has 60 divisors (see below), whose sum is σ = 910853242992. Its totient is φ = 335931888600.

The previous prime is 554300661269. The next prime is 554300661337. The reversal of 554300661321 is 123166003455.

554300661321 is a `hidden beast` number, since 5 + 5 + 4 + 30 + 0 + 6 + 613 + 2 + 1 = 666.

It is not a de Polignac number, because 554300661321 - 2¹⁷ = 554300530249 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (554300661521) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 13023886 + ... + 13066376.

Almost surely, 2^554300661321 is an apocalyptic number.

It is an amenable number.

554300661321 is a deficient number, since it is larger than the sum of its proper divisors (356552581671).

554300661321 is an frugal number, since it uses more digits than its factorization.

554300661321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42558 (or 42505 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 554300661321 its reverse (123166003455), we get a palindrome (677466664776).

The spelling of 554300661321 in words is "five hundred fifty-four billion, three hundred million, six hundred sixty-one thousand, three hundred twenty-one".