12345666654290 has 32 divisors (see below), whose sum is σ = 22402923992064. Its totient is φ = 4898254792960.

The previous prime is 12345666654289. The next prime is 12345666654301. The reversal of 12345666654290 is 9245666654321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8650919 + ... + 9976458.

It is an arithmetic number, because the mean of its divisors is an integer number (700091374752).

Almost surely, 2^{12345666654290} is an apocalyptic number.

12345666654290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12345666654290 is a deficient number, since it is larger than the sum of its proper divisors (10057257337774).

12345666654290 is a wasteful number, since it uses less digits than its factorization.

12345666654290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18627922.

The product of its (nonzero) digits is 55987200, while the sum is 59.

The spelling of 12345666654290 in words is "twelve trillion, three hundred forty-five billion, six hundred sixty-six million, six hundred fifty-four thousand, two hundred ninety".