12016649165357 has 2 divisors, whose sum is σ = 12016649165358. Its totient is φ = 12016649165356.

The previous prime is 12016649165329. The next prime is 12016649165441. The reversal of 12016649165357 is 75356194661021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10073806253476 + 1942842911881 = 3173926^2 + 1393859^2 .

It is a cyclic number.

It is not a de Polignac number, because 12016649165357 - 2²⁴ = 12016632388141 is a prime.

It is a super-3 number, since 3×12016649165357³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12016649165317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6008324582678 + 6008324582679.

It is an arithmetic number, because the mean of its divisors is an integer number (6008324582679).

Almost surely, 2^{12016649165357} is an apocalyptic number.

It is an amenable number.

12016649165357 is a deficient number, since it is larger than the sum of its proper divisors (1).

12016649165357 is an equidigital number, since it uses as much as digits as its factorization.

12016649165357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8164800, while the sum is 56.

The spelling of 12016649165357 in words is "twelve trillion, sixteen billion, six hundred forty-nine million, one hundred sixty-five thousand, three hundred fifty-seven".