626040066666 has 32 divisors (see below), whose sum is σ = 1431214871040. Its totient is φ = 178835322096.

The previous prime is 626040066643. The next prime is 626040066677. The reversal of 626040066666 is 666660040626.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1157236 + ... + 1609743.

It is an arithmetic number, because the mean of its divisors is an integer number (44725464720).

Almost surely, 2^626040066666 is an apocalyptic number.

626040066666 is an abundant number, since it is smaller than the sum of its proper divisors (805174804374).

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

626040066666 is a wasteful number, since it uses less digits than its factorization.

626040066666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772378.

The product of its (nonzero) digits is 2239488, while the sum is 48.

The spelling of 626040066666 in words is "six hundred twenty-six billion, forty million, sixty-six thousand, six hundred sixty-six".