393626436066 has 12 divisors (see below), whose sum is σ = 852857278182. Its totient is φ = 131208812016.

The previous prime is 393626436061. The next prime is 393626436089. The reversal of 393626436066 is 660634626393.

393626436066 is a `hidden beast` number, since 3 + 9 + 3 + 6 + 26 + 4 + 3 + 606 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 222143485041 + 171482951025 = 471321^2 + 414105^2 .

It is not an unprimeable number, because it can be changed into a prime (393626436061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10934067651 + ... + 10934067686.

Almost surely, 2^393626436066 is an apocalyptic number.

393626436066 is an abundant number, since it is smaller than the sum of its proper divisors (459230842116).

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

393626436066 is a wasteful number, since it uses less digits than its factorization.

393626436066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21868135345 (or 21868135342 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 54.

The spelling of 393626436066 in words is "three hundred ninety-three billion, six hundred twenty-six million, four hundred thirty-six thousand, sixty-six".