401659373441 has 2 divisors, whose sum is σ = 401659373442. Its totient is φ = 401659373440.

The previous prime is 401659373359. The next prime is 401659373443. The reversal of 401659373441 is 144373956104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395760519025 + 5898854416 = 629095^2 + 76804^2 .

It is a cyclic number.

It is not a de Polignac number, because 401659373441 - 2¹⁰ = 401659372417 is a prime.

It is a super-2 number, since 2×401659373441² (a number of 24 digits) contains 22 as substring.

Together with 401659373443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (401659373443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200829686720 + 200829686721.

It is an arithmetic number, because the mean of its divisors is an integer number (200829686721).

Almost surely, 2^401659373441 is an apocalyptic number.

It is an amenable number.

401659373441 is a deficient number, since it is larger than the sum of its proper divisors (1).

401659373441 is an equidigital number, since it uses as much as digits as its factorization.

401659373441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 401659373441 in words is "four hundred one billion, six hundred fifty-nine million, three hundred seventy-three thousand, four hundred forty-one".