14155501440 has 128 divisors (see below), whose sum is σ = 46340370720. Its totient is φ = 3672760320.

The previous prime is 14155501439. The next prime is 14155501441. The reversal of 14155501440 is 4410555141.

It is an interprime number because it is at equal distance from previous prime (14155501439) and next prime (14155501441).

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

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

It is a junction number, because it is equal to n+sod(n) for n = 14155501398 and 14155501407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14155501441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28591 + ... + 170670.

Almost surely, 2^14155501440 is an apocalyptic number.

14155501440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14155501440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23170185360).

14155501440 is an abundant number, since it is smaller than the sum of its proper divisors (32184869280).

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

14155501440 is a wasteful number, since it uses less digits than its factorization.

14155501440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199320 (or 199308 counting only the distinct ones).

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

The spelling of 14155501440 in words is "fourteen billion, one hundred fifty-five million, five hundred one thousand, four hundred forty".