12461046651165 has 64 divisors (see below), whose sum is σ = 22883202556416. Its totient is φ = 5672173043712.

The previous prime is 12461046651149. The next prime is 12461046651167. The reversal of 12461046651165 is 56115664016421.

It is not a de Polignac number, because 12461046651165 - 2⁴ = 12461046651149 is a prime.

It is a super-2 number, since 2×12461046651165² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12461046651167) 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 63 ways as a sum of consecutive naturals, for example, 72584869 + ... + 72756341.

It is an arithmetic number, because the mean of its divisors is an integer number (357550039944).

Almost surely, 2^{12461046651165} is an apocalyptic number.

12461046651165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12461046651165 is a deficient number, since it is larger than the sum of its proper divisors (10422155905251).

12461046651165 is a wasteful number, since it uses less digits than its factorization.

12461046651165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174438.

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 12461046651165 in words is "twelve trillion, four hundred sixty-one billion, forty-six million, six hundred fifty-one thousand, one hundred sixty-five".