1620001144311 has 8 divisors (see below), whose sum is σ = 2356365300864. Its totient is φ = 981818875320.

The previous prime is 1620001144259. The next prime is 1620001144379. The reversal of 1620001144311 is 1134411000261.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1620001144311 - 2⁹ = 1620001143799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620001154311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24545471851 + ... + 24545471916.

It is an arithmetic number, because the mean of its divisors is an integer number (294545662608).

Almost surely, 2^{1620001144311} is an apocalyptic number.

1620001144311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1620001144311 is a deficient number, since it is larger than the sum of its proper divisors (736364156553).

1620001144311 is a wasteful number, since it uses less digits than its factorization.

1620001144311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49090943781.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 1620001144311 its reverse (1134411000261), we get a palindrome (2754412144572).

The spelling of 1620001144311 in words is "one trillion, six hundred twenty billion, one million, one hundred forty-four thousand, three hundred eleven".