66550710050528 has 48 divisors (see below), whose sum is σ = 144890758269936. Its totient is φ = 29835934755840.

The previous prime is 66550710050477. The next prime is 66550710050557. The reversal of 66550710050528 is 82505001705566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294936751 + ... + 1294988142.

It is an arithmetic number, because the mean of its divisors is an integer number (3018557463957).

Almost surely, 2^{66550710050528} is an apocalyptic number.

It is an amenable number.

66550710050528 is an abundant number, since it is smaller than the sum of its proper divisors (78340048219408).

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

66550710050528 is a wasteful number, since it uses less digits than its factorization.

66550710050528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589924987 (or 2589924979 counting only the distinct ones).

The product of its (nonzero) digits is 2520000, while the sum is 50.

The spelling of 66550710050528 in words is "sixty-six trillion, five hundred fifty billion, seven hundred ten million, fifty thousand, five hundred twenty-eight".