216374556537703 has 2 divisors, whose sum is σ = 216374556537704. Its totient is φ = 216374556537702.

The previous prime is 216374556537691. The next prime is 216374556537731. The reversal of 216374556537703 is 307735655473612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216374556537703 - 2³⁷ = 216237117584231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216374556547703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108187278268851 + 108187278268852.

It is an arithmetic number, because the mean of its divisors is an integer number (108187278268852).

Almost surely, 2^{216374556537703} is an apocalyptic number.

216374556537703 is a deficient number, since it is larger than the sum of its proper divisors (1).

216374556537703 is an equidigital number, since it uses as much as digits as its factorization.

216374556537703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 333396000, while the sum is 64.

The spelling of 216374556537703 in words is "two hundred sixteen trillion, three hundred seventy-four billion, five hundred fifty-six million, five hundred thirty-seven thousand, seven hundred three".