12102855829644 has 192 divisors, whose sum is σ = 30886279022592. Its totient is φ = 3678093619200.

The previous prime is 12102855829643. The next prime is 12102855829657. The reversal of 12102855829644 is 44692855820121.

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

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 113780004 + ... + 113886324.

It is an arithmetic number, because the mean of its divisors is an integer number (160866036576).

Almost surely, 2^{12102855829644} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12102855829644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15443139511296).

12102855829644 is an abundant number, since it is smaller than the sum of its proper divisors (18783423192948).

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

12102855829644 is a wasteful number, since it uses less digits than its factorization.

12102855829644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106616 (or 106614 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 57.

The spelling of 12102855829644 in words is "twelve trillion, one hundred two billion, eight hundred fifty-five million, eight hundred twenty-nine thousand, six hundred forty-four".