30554211321440 has 192 divisors, whose sum is σ = 76781968623360. Its totient is φ = 11449903349760.

The previous prime is 30554211321383. The next prime is 30554211321443. The reversal of 30554211321440 is 4412311245503.

It is a self number, because there is not a number n which added to its sum of digits gives 30554211321440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30554211321443) 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 31 ways as a sum of consecutive naturals, for example, 1666978196 + ... + 1666996524.

It is an arithmetic number, because the mean of its divisors is an integer number (399906086580).

Almost surely, 2^{30554211321440} 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 30554211321440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38390984311680).

30554211321440 is an abundant number, since it is smaller than the sum of its proper divisors (46227757301920).

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

30554211321440 is a wasteful number, since it uses less digits than its factorization.

30554211321440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21145 (or 21137 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 30554211321440 its reverse (4412311245503), we get a palindrome (34966522566943).

The spelling of 30554211321440 in words is "thirty trillion, five hundred fifty-four billion, two hundred eleven million, three hundred twenty-one thousand, four hundred forty".