1421440320006 has 96 divisors (see below), whose sum is σ = 3650717161728. Its totient is φ = 406059181920.

The previous prime is 1421440319993. The next prime is 1421440320017. The reversal of 1421440320006 is 6000230441241.

It is a happy number.

1421440320006 is a `hidden beast` number, since 1 + 42 + 14 + 403 + 200 + 0 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22976836 + ... + 23038616.

It is an arithmetic number, because the mean of its divisors is an integer number (38028303768).

Almost surely, 2^{1421440320006} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421440320006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1825358580864).

1421440320006 is an abundant number, since it is smaller than the sum of its proper divisors (2229276841722).

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

1421440320006 is an equidigital number, since it uses as much as digits as its factorization.

1421440320006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68568 (or 68556 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1421440320006 its reverse (6000230441241), we get a palindrome (7421670761247).

The spelling of 1421440320006 in words is "one trillion, four hundred twenty-one billion, four hundred forty million, three hundred twenty thousand, six".