520090996865 has 16 divisors (see below), whose sum is σ = 697452408576. Its totient is φ = 369022435200.

The previous prime is 520090996853. The next prime is 520090996879. The reversal of 520090996865 is 568699090025.

It is not a de Polignac number, because 520090996865 - 2¹⁸ = 520090734721 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115317257 + ... + 115321766.

It is an arithmetic number, because the mean of its divisors is an integer number (43590775536).

Almost surely, 2^520090996865 is an apocalyptic number.

520090996865 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

520090996865 is a deficient number, since it is larger than the sum of its proper divisors (177361411711).

520090996865 is a wasteful number, since it uses less digits than its factorization.

520090996865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230639080.

The product of its (nonzero) digits is 10497600, while the sum is 59.

The spelling of 520090996865 in words is "five hundred twenty billion, ninety million, nine hundred ninety-six thousand, eight hundred sixty-five".