66494106600 has 96 divisors (see below), whose sum is σ = 207705500640. Its totient is φ = 17596384000.

The previous prime is 66494106587. The next prime is 66494106617. The reversal of 66494106600 is 660149466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 344391 + ... + 501590.

It is an arithmetic number, because the mean of its divisors is an integer number (2163598965).

Almost surely, 2^66494106600 is an apocalyptic number.

66494106600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66494106600 is an abundant number, since it is smaller than the sum of its proper divisors (141211394040).

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

66494106600 is a wasteful number, since it uses less digits than its factorization.

66494106600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846131 (or 846122 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 66494106600 in words is "sixty-six billion, four hundred ninety-four million, one hundred six thousand, six hundred".