416140219981 has 2 divisors, whose sum is σ = 416140219982. Its totient is φ = 416140219980.

The previous prime is 416140219969. The next prime is 416140220051. The reversal of 416140219981 is 189912041614.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258424806025 + 157715413956 = 508355^2 + 397134^2 .

It is a cyclic number.

It is not a de Polignac number, because 416140219981 - 2⁵ = 416140219949 is a prime.

It is a super-2 number, since 2×416140219981² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (416140219921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208070109990 + 208070109991.

It is an arithmetic number, because the mean of its divisors is an integer number (208070109991).

Almost surely, 2^416140219981 is an apocalyptic number.

It is an amenable number.

416140219981 is a deficient number, since it is larger than the sum of its proper divisors (1).

416140219981 is an equidigital number, since it uses as much as digits as its factorization.

416140219981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 46.

The spelling of 416140219981 in words is "four hundred sixteen billion, one hundred forty million, two hundred nineteen thousand, nine hundred eighty-one".