216100415249 has 2 divisors, whose sum is σ = 216100415250. Its totient is φ = 216100415248.

The previous prime is 216100415191. The next prime is 216100415257. The reversal of 216100415249 is 942514001612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215797411600 + 303003649 = 464540^2 + 17407^2 .

It is a cyclic number.

It is not a de Polignac number, because 216100415249 - 2⁸ = 216100414993 is a prime.

It is not a weakly prime, because it can be changed into another prime (216100415549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108050207624 + 108050207625.

It is an arithmetic number, because the mean of its divisors is an integer number (108050207625).

Almost surely, 2^216100415249 is an apocalyptic number.

It is an amenable number.

216100415249 is a deficient number, since it is larger than the sum of its proper divisors (1).

216100415249 is an equidigital number, since it uses as much as digits as its factorization.

216100415249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 216100415249 in words is "two hundred sixteen billion, one hundred million, four hundred fifteen thousand, two hundred forty-nine".