521526000366 has 48 divisors (see below), whose sum is σ = 1304183863008. Its totient is φ = 147532104000.

The previous prime is 521526000361. The next prime is 521526000367. The reversal of 521526000366 is 663000625125.

It is a happy number.

521526000366 is a `hidden beast` number, since 5 + 2 + 15 + 2 + 600 + 0 + 36 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 521526000366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521526000361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20477845 + ... + 20503296.

It is an arithmetic number, because the mean of its divisors is an integer number (27170497146).

Almost surely, 2^521526000366 is an apocalyptic number.

521526000366 is an abundant number, since it is smaller than the sum of its proper divisors (782657862642).

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

521526000366 is a wasteful number, since it uses less digits than its factorization.

521526000366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40981257 (or 40981254 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 521526000366 in words is "five hundred twenty-one billion, five hundred twenty-six million, three hundred sixty-six", and thus it is an aban number.