12015356365997 has 2 divisors, whose sum is σ = 12015356365998. Its totient is φ = 12015356365996.

The previous prime is 12015356365963. The next prime is 12015356366093. The reversal of 12015356365997 is 79956365351021.

12015356365997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10911619119076 + 1103737246921 = 3303274^2 + 1050589^2 .

It is a cyclic number.

It is not a de Polignac number, because 12015356365997 - 2¹⁸ = 12015356103853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12015356365697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6007678182998 + 6007678182999.

It is an arithmetic number, because the mean of its divisors is an integer number (6007678182999).

Almost surely, 2^{12015356365997} is an apocalyptic number.

It is an amenable number.

12015356365997 is a deficient number, since it is larger than the sum of its proper divisors (1).

12015356365997 is an equidigital number, since it uses as much as digits as its factorization.

12015356365997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45927000, while the sum is 62.

The spelling of 12015356365997 in words is "twelve trillion, fifteen billion, three hundred fifty-six million, three hundred sixty-five thousand, nine hundred ninety-seven".