12351983665025 has 12 divisors (see below), whose sum is σ = 15316546849392. Its totient is φ = 9881530735440.

The previous prime is 12351983664997. The next prime is 12351983665033. The reversal of 12351983665025 is 52056638915321.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12351983665025 is a prime.

It is a super-2 number, since 2×12351983665025² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3401402 + ... + 6022748.

It is an arithmetic number, because the mean of its divisors is an integer number (1276378904116).

Almost surely, 2^{12351983665025} is an apocalyptic number.

It is an amenable number.

12351983665025 is a deficient number, since it is larger than the sum of its proper divisors (2964563184367).

12351983665025 is a wasteful number, since it uses less digits than its factorization.

12351983665025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809840 (or 2809835 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 56.

The spelling of 12351983665025 in words is "twelve trillion, three hundred fifty-one billion, nine hundred eighty-three million, six hundred sixty-five thousand, twenty-five".