12261662045466 has 32 divisors (see below), whose sum is σ = 24580918053888. Its totient is φ = 4077622425600.

The previous prime is 12261662045419. The next prime is 12261662045467. The reversal of 12261662045466 is 66454026616221.

It is a super-2 number, since 2×12261662045466² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12261662045467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79985991 + ... + 80139141.

It is an arithmetic number, because the mean of its divisors is an integer number (768153689184).

Almost surely, 2^{12261662045466} is an apocalyptic number.

12261662045466 is an abundant number, since it is smaller than the sum of its proper divisors (12319256008422).

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

12261662045466 is a wasteful number, since it uses less digits than its factorization.

12261662045466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184406.

The product of its (nonzero) digits is 4976640, while the sum is 51.

The spelling of 12261662045466 in words is "twelve trillion, two hundred sixty-one billion, six hundred sixty-two million, forty-five thousand, four hundred sixty-six".