616411523361 has 4 divisors (see below), whose sum is σ = 821882031152. Its totient is φ = 410941015572.

The previous prime is 616411523317. The next prime is 616411523363. The reversal of 616411523361 is 163325114616.

616411523361 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 616411523361 - 2¹³ = 616411515169 is a prime.

It is a super-2 number, since 2×616411523361² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616411523363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102735253891 + ... + 102735253896.

It is an arithmetic number, because the mean of its divisors is an integer number (205470507788).

Almost surely, 2^616411523361 is an apocalyptic number.

It is an amenable number.

616411523361 is a deficient number, since it is larger than the sum of its proper divisors (205470507791).

616411523361 is a wasteful number, since it uses less digits than its factorization.

616411523361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205470507790.

The product of its digits is 77760, while the sum is 39.

Adding to 616411523361 its reverse (163325114616), we get a palindrome (779736637977).

The spelling of 616411523361 in words is "six hundred sixteen billion, four hundred eleven million, five hundred twenty-three thousand, three hundred sixty-one".