66531168046 has 32 divisors (see below), whose sum is σ = 117225800640. Its totient is φ = 27730771200.

The previous prime is 66531168043. The next prime is 66531168047. The reversal of 66531168046 is 64086113566.

It is a junction number, because it is equal to n+sod(n) for n = 66531167987 and 66531168005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66531168043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361665 + ... + 513676.

It is an arithmetic number, because the mean of its divisors is an integer number (3663306270).

Almost surely, 2^66531168046 is an apocalyptic number.

66531168046 is a deficient number, since it is larger than the sum of its proper divisors (50694632594).

66531168046 is a wasteful number, since it uses less digits than its factorization.

66531168046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875500.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 66531168046 in words is "sixty-six billion, five hundred thirty-one million, one hundred sixty-eight thousand, forty-six".