396520565760 has 704 divisors, whose sum is σ = 1552271869440. Its totient is φ = 95188746240.

The previous prime is 396520565747. The next prime is 396520565761. The reversal of 396520565760 is 67565025693.

It is a happy number.

396520565760 is a `hidden beast` number, since 3 + 9 + 6 + 5 + 2 + 0 + 565 + 76 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (704).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 396520565697 and 396520565706.

It is not an unprimeable number, because it can be changed into a prime (396520565761) 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 63 ways as a sum of consecutive naturals, for example, 162707262 + ... + 162709698.

Almost surely, 2^396520565760 is an apocalyptic number.

396520565760 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396520565760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776135934720).

396520565760 is an abundant number, since it is smaller than the sum of its proper divisors (1155751303680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396520565760 is a wasteful number, since it uses less digits than its factorization.

396520565760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589 (or 2565 counting only the distinct ones).

The product of its (nonzero) digits is 10206000, while the sum is 54.

The spelling of 396520565760 in words is "three hundred ninety-six billion, five hundred twenty million, five hundred sixty-five thousand, seven hundred sixty".