526640606604 has 360 divisors, whose sum is σ = 1712272242912. Its totient is φ = 138156503040.

The previous prime is 526640606599. The next prime is 526640606623. The reversal of 526640606604 is 406606046625.

526640606604 is a `hidden beast` number, since 526 + 6 + 4 + 0 + 60 + 6 + 60 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 526640606604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 26863734 + ... + 26883330.

Almost surely, 2^526640606604 is an apocalyptic number.

526640606604 is a gapful number since it is divisible by the number (54) 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 526640606604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (856136121456).

526640606604 is an abundant number, since it is smaller than the sum of its proper divisors (1185631636308).

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

526640606604 is a wasteful number, since it uses less digits than its factorization.

526640606604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19695 (or 19667 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 526640606604 in words is "five hundred twenty-six billion, six hundred forty million, six hundred six thousand, six hundred four".