140561520220 has 48 divisors (see below), whose sum is σ = 325201970016. Its totient is φ = 50607200000.

The previous prime is 140561520167. The next prime is 140561520227. The reversal of 140561520220 is 22025165041.

140561520220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140561520227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3140731 + ... + 3185170.

It is an arithmetic number, because the mean of its divisors is an integer number (6775041042).

Almost surely, 2^140561520220 is an apocalyptic number.

140561520220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140561520220 is an abundant number, since it is smaller than the sum of its proper divisors (184640449796).

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

140561520220 is a wasteful number, since it uses less digits than its factorization.

140561520220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6326022 (or 6326020 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 140561520220 its reverse (22025165041), we get a palindrome (162586685261).

The spelling of 140561520220 in words is "one hundred forty billion, five hundred sixty-one million, five hundred twenty thousand, two hundred twenty".