140221154550 has 48 divisors (see below), whose sum is σ = 358966167552. Its totient is φ = 36186103200.

The previous prime is 140221154539. The next prime is 140221154603. The reversal of 140221154550 is 55451122041.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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, 15072894 + ... + 15082193.

It is an arithmetic number, because the mean of its divisors is an integer number (7478461824).

Almost surely, 2^140221154550 is an apocalyptic number.

140221154550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140221154550 is an abundant number, since it is smaller than the sum of its proper divisors (218745013002).

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

140221154550 is a wasteful number, since it uses less digits than its factorization.

140221154550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30155133 (or 30155128 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 140221154550 its reverse (55451122041), we get a palindrome (195672276591).

The spelling of 140221154550 in words is "one hundred forty billion, two hundred twenty-one million, one hundred fifty-four thousand, five hundred fifty".