216365069747 has 2 divisors, whose sum is σ = 216365069748. Its totient is φ = 216365069746.

The previous prime is 216365069681. The next prime is 216365069759. The reversal of 216365069747 is 747960563612.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216365069747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216365069692 and 216365069701.

It is not a weakly prime, because it can be changed into another prime (216365069147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108182534873 + 108182534874.

It is an arithmetic number, because the mean of its divisors is an integer number (108182534874).

Almost surely, 2^216365069747 is an apocalyptic number.

216365069747 is a deficient number, since it is larger than the sum of its proper divisors (1).

216365069747 is an equidigital number, since it uses as much as digits as its factorization.

216365069747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11430720, while the sum is 56.

The spelling of 216365069747 in words is "two hundred sixteen billion, three hundred sixty-five million, sixty-nine thousand, seven hundred forty-seven".