66123013352 has 32 divisors (see below), whose sum is σ = 141132127680. Its totient is φ = 28749135360.

The previous prime is 66123013339. The next prime is 66123013373. The reversal of 66123013352 is 25331032166.

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, 16332713 + ... + 16336760.

It is an arithmetic number, because the mean of its divisors is an integer number (4410378990).

Almost surely, 2^66123013352 is an apocalyptic number.

It is an amenable number.

66123013352 is an abundant number, since it is smaller than the sum of its proper divisors (75009114328).

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

66123013352 is a wasteful number, since it uses less digits than its factorization.

66123013352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32669513 (or 32669509 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The spelling of 66123013352 in words is "sixty-six billion, one hundred twenty-three million, thirteen thousand, three hundred fifty-two".