526560664540541 has 4 divisors (see below), whose sum is σ = 526569597987072. Its totient is φ = 526551731094012.

The previous prime is 526560664540531. The next prime is 526560664540579. The reversal of 526560664540541 is 145045466065625.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-526560664540541 is a prime.

It is a super-2 number, since 2×526560664540541² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526560664540511) 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, 4466634851 + ... + 4466752736.

It is an arithmetic number, because the mean of its divisors is an integer number (131642399496768).

Almost surely, 2^{526560664540541} is an apocalyptic number.

It is an amenable number.

526560664540541 is a deficient number, since it is larger than the sum of its proper divisors (8933446531).

526560664540541 is an equidigital number, since it uses as much as digits as its factorization.

526560664540541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8933446530.

The product of its (nonzero) digits is 103680000, while the sum is 59.

The spelling of 526560664540541 in words is "five hundred twenty-six trillion, five hundred sixty billion, six hundred sixty-four million, five hundred forty thousand, five hundred forty-one".