260664602520 has 128 divisors (see below), whose sum is σ = 893996812800. Its totient is φ = 59561174016.

The previous prime is 260664602503. The next prime is 260664602557. The reversal of 260664602520 is 25206466062.

260664602520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×260664602520³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 2628396 + ... + 2725764.

It is an arithmetic number, because the mean of its divisors is an integer number (6984350100).

Almost surely, 2^260664602520 is an apocalyptic number.

260664602520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260664602520 is an abundant number, since it is smaller than the sum of its proper divisors (633332210280).

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

260664602520 is a wasteful number, since it uses less digits than its factorization.

260664602520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100577 (or 100573 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 260664602520 in words is "two hundred sixty billion, six hundred sixty-four million, six hundred two thousand, five hundred twenty".