554221231356 has 72 divisors (see below), whose sum is σ = 1412551657552. Its totient is φ = 168127545600.

The previous prime is 554221231349. The next prime is 554221231357. The reversal of 554221231356 is 653132122455.

It is a super-2 number, since 2×554221231356² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554221231357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 434016 + ... + 1138776.

Almost surely, 2^554221231356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 554221231356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (706275828776).

554221231356 is an abundant number, since it is smaller than the sum of its proper divisors (858330426196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

554221231356 is a wasteful number, since it uses less digits than its factorization.

554221231356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704923 (or 704850 counting only the distinct ones).

The product of its digits is 216000, while the sum is 39.

The spelling of 554221231356 in words is "five hundred fifty-four billion, two hundred twenty-one million, two hundred thirty-one thousand, three hundred fifty-six".