12054216705 has 16 divisors (see below), whose sum is σ = 19951807680. Its totient is φ = 6207228608.

The previous prime is 12054216701. The next prime is 12054216709. The reversal of 12054216705 is 50761245021.

It is an interprime number because it is at equal distance from previous prime (12054216701) and next prime (12054216709).

It is a cyclic number.

It is not a de Polignac number, because 12054216705 - 2² = 12054216701 is a prime.

It is a super-2 number, since 2×12054216705² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12054216701) 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, 13854987 + ... + 13855856.

It is an arithmetic number, because the mean of its divisors is an integer number (1246987980).

Almost surely, 2^12054216705 is an apocalyptic number.

12054216705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12054216705 is a deficient number, since it is larger than the sum of its proper divisors (7897590975).

12054216705 is a wasteful number, since it uses less digits than its factorization.

12054216705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27710880.

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 12054216705 in words is "twelve billion, fifty-four million, two hundred sixteen thousand, seven hundred five".