1421411611620 has 384 divisors, whose sum is σ = 5416930713600. Its totient is φ = 268902789120.

The previous prime is 1421411611603. The next prime is 1421411611637. The reversal of 1421411611620 is 261161141241.

It is an interprime number because it is at equal distance from previous prime (1421411611603) and next prime (1421411611637).

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

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4222281 + ... + 4546479.

It is an arithmetic number, because the mean of its divisors is an integer number (14106590400).

Almost surely, 2^{1421411611620} is an apocalyptic number.

1421411611620 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 1421411611620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2708465356800).

1421411611620 is an abundant number, since it is smaller than the sum of its proper divisors (3995519101980).

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

1421411611620 is a wasteful number, since it uses less digits than its factorization.

1421411611620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324315 (or 324313 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

Adding to 1421411611620 its reverse (261161141241), we get a palindrome (1682572752861).

The spelling of 1421411611620 in words is "one trillion, four hundred twenty-one billion, four hundred eleven million, six hundred eleven thousand, six hundred twenty".