66752775242524 has 48 divisors (see below), whose sum is σ = 137862317824000. Its totient is φ = 27675410719680.

The previous prime is 66752775242519. The next prime is 66752775242551. The reversal of 66752775242524 is 42524257725766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11601522 + ... + 16373785.

Almost surely, 2^{66752775242524} is an apocalyptic number.

It is an amenable number.

66752775242524 is an abundant number, since it is smaller than the sum of its proper divisors (71109542581476).

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

66752775242524 is a wasteful number, since it uses less digits than its factorization.

66752775242524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27978098 (or 27978096 counting only the distinct ones).

The product of its digits is 395136000, while the sum is 64.

The spelling of 66752775242524 in words is "sixty-six trillion, seven hundred fifty-two billion, seven hundred seventy-five million, two hundred forty-two thousand, five hundred twenty-four".