260624040066 has 48 divisors (see below), whose sum is σ = 612497820480. Its totient is φ = 79615081440.

The previous prime is 260624040043. The next prime is 260624040071. The reversal of 260624040066 is 660040426062.

260624040066 is a `hidden beast` number, since 2 + 6 + 0 + 6 + 240 + 400 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 260624040066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3973870 + ... + 4038921.

It is an arithmetic number, because the mean of its divisors is an integer number (12760371260).

Almost surely, 2^260624040066 is an apocalyptic number.

260624040066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

260624040066 is an abundant number, since it is smaller than the sum of its proper divisors (351873780414).

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

260624040066 is a wasteful number, since it uses less digits than its factorization.

260624040066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8012951 (or 8012948 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 260624040066 in words is "two hundred sixty billion, six hundred twenty-four million, forty thousand, sixty-six".