14155242220 has 24 divisors (see below), whose sum is σ = 33972581664. Its totient is φ = 4853225856.

The previous prime is 14155242217. The next prime is 14155242271. The reversal of 14155242220 is 2224255141.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 50554297 + ... + 50554576.

It is an arithmetic number, because the mean of its divisors is an integer number (1415524236).

Almost surely, 2^14155242220 is an apocalyptic number.

14155242220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14155242220 is an abundant number, since it is smaller than the sum of its proper divisors (19817339444).

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

14155242220 is a wasteful number, since it uses less digits than its factorization.

14155242220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101108889 (or 101108887 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 14155242220 its reverse (2224255141), we get a palindrome (16379497361).

The spelling of 14155242220 in words is "fourteen billion, one hundred fifty-five million, two hundred forty-two thousand, two hundred twenty".