140220135552 has 128 divisors (see below), whose sum is σ = 440346729600. Its totient is φ = 38681395200.

The previous prime is 140220135499. The next prime is 140220135563. The reversal of 140220135552 is 255531022041.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 821449 + ... + 977352.

It is an arithmetic number, because the mean of its divisors is an integer number (3440208825).

Almost surely, 2^140220135552 is an apocalyptic number.

140220135552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140220135552 is an abundant number, since it is smaller than the sum of its proper divisors (300126594048).

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

140220135552 is a wasteful number, since it uses less digits than its factorization.

140220135552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798854 (or 1798842 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 140220135552 its reverse (255531022041), we get a palindrome (395751157593).

The spelling of 140220135552 in words is "one hundred forty billion, two hundred twenty million, one hundred thirty-five thousand, five hundred fifty-two".