12370216667491 has 2 divisors, whose sum is σ = 12370216667492. Its totient is φ = 12370216667490.

The previous prime is 12370216667449. The next prime is 12370216667561. The reversal of 12370216667491 is 19476661207321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12370216667491 - 2³¹ = 12368069183843 is a prime.

It is not a weakly prime, because it can be changed into another prime (12370216662491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6185108333745 + 6185108333746.

It is an arithmetic number, because the mean of its divisors is an integer number (6185108333746).

Almost surely, 2^{12370216667491} is an apocalyptic number.

12370216667491 is a deficient number, since it is larger than the sum of its proper divisors (1).

12370216667491 is an equidigital number, since it uses as much as digits as its factorization.

12370216667491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 12370216667491 in words is "twelve trillion, three hundred seventy billion, two hundred sixteen million, six hundred sixty-seven thousand, four hundred ninety-one".