401616522245 has 4 divisors (see below), whose sum is σ = 481939826700. Its totient is φ = 321293217792.

The previous prime is 401616522199. The next prime is 401616522247. The reversal of 401616522245 is 542225616104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 130932527716 + 270683994529 = 361846^2 + 520273^2 .

It is a cyclic number.

It is not a de Polignac number, because 401616522245 - 2⁸ = 401616521989 is a prime.

It is a super-2 number, since 2×401616522245² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401616522199 and 401616522208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401616522247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40161652220 + ... + 40161652229.

It is an arithmetic number, because the mean of its divisors is an integer number (120484956675).

Almost surely, 2^401616522245 is an apocalyptic number.

It is an amenable number.

401616522245 is a deficient number, since it is larger than the sum of its proper divisors (80323304455).

401616522245 is an equidigital number, since it uses as much as digits as its factorization.

401616522245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80323304454.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 401616522245 in words is "four hundred one billion, six hundred sixteen million, five hundred twenty-two thousand, two hundred forty-five".