14211647640 has 160 divisors (see below), whose sum is σ = 48016536480. Its totient is φ = 3769970688.

The previous prime is 14211647623. The next prime is 14211647687. The reversal of 14211647640 is 4674611241.

It is a happy number.

14211647640 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 1 + 6 + 4 + 7 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 14211647595 and 14211647604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 613957 + ... + 636683.

It is an arithmetic number, because the mean of its divisors is an integer number (300103353).

Almost surely, 2^14211647640 is an apocalyptic number.

14211647640 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 14211647640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24008268240).

14211647640 is an abundant number, since it is smaller than the sum of its proper divisors (33804888840).

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

14211647640 is a wasteful number, since it uses less digits than its factorization.

14211647640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22943 (or 22930 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 14211647640 in words is "fourteen billion, two hundred eleven million, six hundred forty-seven thousand, six hundred forty".