66855043352 has 32 divisors (see below), whose sum is σ = 127512910800. Its totient is φ = 32851912704.

The previous prime is 66855043327. The next prime is 66855043363. The reversal of 66855043352 is 25334055866.

It is a junction number, because it is equal to n+sod(n) for n = 66855043297 and 66855043306.

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, 1897448 + ... + 1932360.

Almost surely, 2^66855043352 is an apocalyptic number.

It is an amenable number.

66855043352 is a deficient number, since it is larger than the sum of its proper divisors (60657867448).

66855043352 is a wasteful number, since it uses less digits than its factorization.

66855043352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39035 (or 39031 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 66855043352 in words is "sixty-six billion, eight hundred fifty-five million, forty-three thousand, three hundred fifty-two".