2320544665344 has 144 divisors (see below), whose sum is σ = 6454126812672. Its totient is φ = 739450650624.

The previous prime is 2320544665339. The next prime is 2320544665433. The reversal of 2320544665344 is 4435664450232.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 2320544665293 and 2320544665302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 804592 + ... + 2299664.

It is an arithmetic number, because the mean of its divisors is an integer number (44820325088).

Almost surely, 2^{2320544665344} is an apocalyptic number.

2320544665344 is a gapful number since it is divisible by the number (24) 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 2320544665344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3227063406336).

2320544665344 is an abundant number, since it is smaller than the sum of its proper divisors (4133582147328).

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

2320544665344 is a wasteful number, since it uses less digits than its factorization.

2320544665344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495182 (or 1495168 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 48.

The spelling of 2320544665344 in words is "two trillion, three hundred twenty billion, five hundred forty-four million, six hundred sixty-five thousand, three hundred forty-four".