2321644016445 has 128 divisors (see below), whose sum is σ = 4259600400384. Its totient is φ = 1069668716544.

The previous prime is 2321644016437. The next prime is 2321644016453. The reversal of 2321644016445 is 5446104461232.

It is an interprime number because it is at equal distance from previous prime (2321644016437) and next prime (2321644016453).

It is not a de Polignac number, because 2321644016445 - 2³ = 2321644016437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2321644016397 and 2321644016406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1051944532 + ... + 1051946738.

It is an arithmetic number, because the mean of its divisors is an integer number (33278128128).

Almost surely, 2^{2321644016445} is an apocalyptic number.

It is an amenable number.

2321644016445 is a deficient number, since it is larger than the sum of its proper divisors (1937956383939).

2321644016445 is a wasteful number, since it uses less digits than its factorization.

2321644016445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3891.

The product of its (nonzero) digits is 552960, while the sum is 42.

Adding to 2321644016445 its reverse (5446104461232), we get a palindrome (7767748477677).

The spelling of 2321644016445 in words is "two trillion, three hundred twenty-one billion, six hundred forty-four million, sixteen thousand, four hundred forty-five".