12015137358686 has 64 divisors (see below), whose sum is σ = 23248560384000. Its totient is φ = 4519048369920.

The previous prime is 12015137358667. The next prime is 12015137358689. The reversal of 12015137358686 is 68685373151021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12015137358689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26972555 + ... + 27414393.

It is an arithmetic number, because the mean of its divisors is an integer number (363258756000).

Almost surely, 2^{12015137358686} is an apocalyptic number.

12015137358686 is a deficient number, since it is larger than the sum of its proper divisors (11233423025314).

12015137358686 is a wasteful number, since it uses less digits than its factorization.

12015137358686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447977.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 12015137358686 in words is "twelve trillion, fifteen billion, one hundred thirty-seven million, three hundred fifty-eight thousand, six hundred eighty-six".