1144238164420 has 96 divisors (see below), whose sum is σ = 2657566195200. Its totient is φ = 411187997184.

The previous prime is 1144238164411. The next prime is 1144238164469. The reversal of 1144238164420 is 244618324411.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1925826 + ... + 2448934.

It is an arithmetic number, because the mean of its divisors is an integer number (27682981200).

Almost surely, 2^{1144238164420} is an apocalyptic number.

1144238164420 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 1144238164420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328783097600).

1144238164420 is an abundant number, since it is smaller than the sum of its proper divisors (1513328030780).

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

1144238164420 is a wasteful number, since it uses less digits than its factorization.

1144238164420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523357 (or 523355 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 1144238164420 in words is "one trillion, one hundred forty-four billion, two hundred thirty-eight million, one hundred sixty-four thousand, four hundred twenty".