216488244101 has 2 divisors, whose sum is σ = 216488244102. Its totient is φ = 216488244100.

The previous prime is 216488244079. The next prime is 216488244121. The reversal of 216488244101 is 101442884612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190729599076 + 25758645025 = 436726^2 + 160495^2 .

It is a cyclic number.

It is not a de Polignac number, because 216488244101 - 2²⁶ = 216421135237 is a prime.

It is a super-2 number, since 2×216488244101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216488244121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108244122050 + 108244122051.

It is an arithmetic number, because the mean of its divisors is an integer number (108244122051).

Almost surely, 2^216488244101 is an apocalyptic number.

It is an amenable number.

216488244101 is a deficient number, since it is larger than the sum of its proper divisors (1).

216488244101 is an equidigital number, since it uses as much as digits as its factorization.

216488244101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98304, while the sum is 41.

The spelling of 216488244101 in words is "two hundred sixteen billion, four hundred eighty-eight million, two hundred forty-four thousand, one hundred one".