66411842486 has 64 divisors (see below), whose sum is σ = 114165504000. Its totient is φ = 28696187520.

The previous prime is 66411842467. The next prime is 66411842501. The reversal of 66411842486 is 68424811466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20007935 + ... + 20011253.

It is an arithmetic number, because the mean of its divisors is an integer number (1783836000).

Almost surely, 2^66411842486 is an apocalyptic number.

66411842486 is a deficient number, since it is larger than the sum of its proper divisors (47753661514).

66411842486 is a wasteful number, since it uses less digits than its factorization.

66411842486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3837.

The product of its digits is 1769472, while the sum is 50.

The spelling of 66411842486 in words is "sixty-six billion, four hundred eleven million, eight hundred forty-two thousand, four hundred eighty-six".