12660434954 has 16 divisors (see below), whose sum is σ = 19482386976. Its totient is φ = 6168246000.

The previous prime is 12660434951. The next prime is 12660434971. The reversal of 12660434954 is 45943406621.

12660434954 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12660434954² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12660434951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471872 + ... + 497979.

It is an arithmetic number, because the mean of its divisors is an integer number (1217649186).

Almost surely, 2^12660434954 is an apocalyptic number.

12660434954 is a deficient number, since it is larger than the sum of its proper divisors (6821952022).

12660434954 is a wasteful number, since it uses less digits than its factorization.

12660434954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970021.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 12660434954 in words is "twelve billion, six hundred sixty million, four hundred thirty-four thousand, nine hundred fifty-four".