533140221440 has 80 divisors (see below), whose sum is σ = 1278519374880. Its totient is φ = 213217320960.

The previous prime is 533140221371. The next prime is 533140221451. The reversal of 533140221440 is 44122041335.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17082650 + ... + 17113830.

It is an arithmetic number, because the mean of its divisors is an integer number (15981492186).

Almost surely, 2^533140221440 is an apocalyptic number.

It is an amenable number.

533140221440 is an abundant number, since it is smaller than the sum of its proper divisors (745379153440).

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

533140221440 is an equidigital number, since it uses as much as digits as its factorization.

533140221440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37883 (or 37867 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 533140221440 its reverse (44122041335), we get a palindrome (577262262775).

The spelling of 533140221440 in words is "five hundred thirty-three billion, one hundred forty million, two hundred twenty-one thousand, four hundred forty".