12135054554000 has 80 divisors (see below), whose sum is σ = 33534356509056. Its totient is φ = 4160590128000.

The previous prime is 12135054553961. The next prime is 12135054554009. The reversal of 12135054554000 is 45545053121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×12135054554000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (12135054554009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433380806 + ... + 433408805.

Almost surely, 2^{12135054554000} is an apocalyptic number.

12135054554000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12135054554000 is an abundant number, since it is smaller than the sum of its proper divisors (21399301955056).

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

12135054554000 is an equidigital number, since it uses as much as digits as its factorization.

12135054554000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866789641 (or 866789625 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 12135054554000 in words is "twelve trillion, one hundred thirty-five billion, fifty-four million, five hundred fifty-four thousand".