521116336 has 40 divisors (see below), whose sum is σ = 1134614880. Its totient is φ = 230055936.

The previous prime is 521116333. The next prime is 521116339. The reversal of 521116336 is 633611125.

It is an interprime number because it is at equal distance from previous prime (521116333) and next prime (521116339).

It is not an unprimeable number, because it can be changed into a prime (521116331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49681 + ... + 59248.

It is an arithmetic number, because the mean of its divisors is an integer number (28365372).

Almost surely, 2^521116336 is an apocalyptic number.

It is an amenable number.

521116336 is an abundant number, since it is smaller than the sum of its proper divisors (613498544).

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

521116336 is a wasteful number, since it uses less digits than its factorization.

521116336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108973 (or 108967 counting only the distinct ones).

The product of its digits is 3240, while the sum is 28.

The square root of 521116336 is about 22827.9726651317. The cubic root of 521116336 is about 804.7201866895.

The spelling of 521116336 in words is "five hundred twenty-one million, one hundred sixteen thousand, three hundred thirty-six".