216653020079 has 2 divisors, whose sum is σ = 216653020080. Its totient is φ = 216653020078.

The previous prime is 216653020057. The next prime is 216653020081. The reversal of 216653020079 is 970020356612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216653020079 - 2³² = 212358052783 is a prime.

It is a super-2 number, since 2×216653020079² (a number of 23 digits) contains 22 as substring.

Together with 216653020081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216653020099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108326510039 + 108326510040.

It is an arithmetic number, because the mean of its divisors is an integer number (108326510040).

Almost surely, 2^216653020079 is an apocalyptic number.

216653020079 is a deficient number, since it is larger than the sum of its proper divisors (1).

216653020079 is an equidigital number, since it uses as much as digits as its factorization.

216653020079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The spelling of 216653020079 in words is "two hundred sixteen billion, six hundred fifty-three million, twenty thousand, seventy-nine".