12155055414 has 16 divisors (see below), whose sum is σ = 24376355328. Its totient is φ = 4040644392.

The previous prime is 12155055377. The next prime is 12155055439. The reversal of 12155055414 is 41455055121.

It is a happy number.

It is a super-2 number, since 2×12155055414² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2757802 + ... + 2762205.

It is an arithmetic number, because the mean of its divisors is an integer number (1523522208).

Almost surely, 2^12155055414 is an apocalyptic number.

12155055414 is an abundant number, since it is smaller than the sum of its proper divisors (12221299914).

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

12155055414 is a wasteful number, since it uses less digits than its factorization.

12155055414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5520379.

The product of its (nonzero) digits is 20000, while the sum is 33.

The spelling of 12155055414 in words is "twelve billion, one hundred fifty-five million, fifty-five thousand, four hundred fourteen".