66158826622 has 16 divisors (see below), whose sum is σ = 113501018592. Its totient is φ = 28332311040.

The previous prime is 66158826619. The next prime is 66158826631. The reversal of 66158826622 is 22662885166.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 66158826622.

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, 1770163 + ... + 1807150.

It is an arithmetic number, because the mean of its divisors is an integer number (7093813662).

Almost surely, 2^66158826622 is an apocalyptic number.

66158826622 is a deficient number, since it is larger than the sum of its proper divisors (47342191970).

66158826622 is a wasteful number, since it uses less digits than its factorization.

66158826622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3578643.

The product of its digits is 3317760, while the sum is 52.

The spelling of 66158826622 in words is "sixty-six billion, one hundred fifty-eight million, eight hundred twenty-six thousand, six hundred twenty-two".