12102855829645 has 24 divisors (see below), whose sum is σ = 16884296141184. Its totient is φ = 8158438327008.

The previous prime is 12102855829643. The next prime is 12102855829657. The reversal of 12102855829645 is 54692855820121.

It is not a de Polignac number, because 12102855829645 - 2¹ = 12102855829643 is a prime.

It is a super-3 number, since 3×12102855829645³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12102855829645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102855829643) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 49547209 + ... + 49790878.

It is an arithmetic number, because the mean of its divisors is an integer number (703512339216).

Almost surely, 2^{12102855829645} is an apocalyptic number.

It is an amenable number.

12102855829645 is a deficient number, since it is larger than the sum of its proper divisors (4781440311539).

12102855829645 is an frugal number, since it uses more digits than its factorization.

12102855829645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99338217 (or 99338158 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 58.

The spelling of 12102855829645 in words is "twelve trillion, one hundred two billion, eight hundred fifty-five million, eight hundred twenty-nine thousand, six hundred forty-five".