12056346465 has 32 divisors (see below), whose sum is σ = 19965329280. Its totient is φ = 6205215744.

The previous prime is 12056346409. The next prime is 12056346539. The reversal of 12056346465 is 56464365021.

It is not a de Polignac number, because 12056346465 - 2¹⁸ = 12056084321 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1045662 + ... + 1057128.

It is an arithmetic number, because the mean of its divisors is an integer number (623916540).

Almost surely, 2^12056346465 is an apocalyptic number.

12056346465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12056346465 is a deficient number, since it is larger than the sum of its proper divisors (7908982815).

12056346465 is a wasteful number, since it uses less digits than its factorization.

12056346465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13921.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 12056346465 in words is "twelve billion, fifty-six million, three hundred forty-six thousand, four hundred sixty-five".