2321810055552 has 64 divisors (see below), whose sum is σ = 6641716278960. Its totient is φ = 714403092480.

The previous prime is 2321810055517. The next prime is 2321810055571. The reversal of 2321810055552 is 2555500181232.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 2321810055552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232548099 + ... + 232558082.

Almost surely, 2^{2321810055552} is an apocalyptic number.

It is an amenable number.

2321810055552 is an abundant number, since it is smaller than the sum of its proper divisors (4319906223408).

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

2321810055552 is a wasteful number, since it uses less digits than its factorization.

2321810055552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465106211 (or 465106199 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 39.

The spelling of 2321810055552 in words is "two trillion, three hundred twenty-one billion, eight hundred ten million, fifty-five thousand, five hundred fifty-two".