401419414661 has 2 divisors, whose sum is σ = 401419414662. Its totient is φ = 401419414660.

The previous prime is 401419414639. The next prime is 401419414663. The reversal of 401419414661 is 166414914104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 296965053025 + 104454361636 = 544945^2 + 323194^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401419414661 is a prime.

It is a super-2 number, since 2×401419414661² (a number of 24 digits) contains 22 as substring.

Together with 401419414663, 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 (401419414663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200709707330 + 200709707331.

It is an arithmetic number, because the mean of its divisors is an integer number (200709707331).

Almost surely, 2^401419414661 is an apocalyptic number.

It is an amenable number.

401419414661 is a deficient number, since it is larger than the sum of its proper divisors (1).

401419414661 is an equidigital number, since it uses as much as digits as its factorization.

401419414661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 401419414661 in words is "four hundred one billion, four hundred nineteen million, four hundred fourteen thousand, six hundred sixty-one".