66052018572 has 12 divisors (see below), whose sum is σ = 154121376696. Its totient is φ = 22017339520.

The previous prime is 66052018537. The next prime is 66052018583. The reversal of 66052018572 is 27581025066.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2752167429 + ... + 2752167452.

It is an arithmetic number, because the mean of its divisors is an integer number (12843448058).

Almost surely, 2^66052018572 is an apocalyptic number.

It is an amenable number.

66052018572 is an abundant number, since it is smaller than the sum of its proper divisors (88069358124).

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

66052018572 is a wasteful number, since it uses less digits than its factorization.

66052018572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5504334888 (or 5504334886 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 66052018572 in words is "sixty-six billion, fifty-two million, eighteen thousand, five hundred seventy-two".