427636257166 has 16 divisors (see below), whose sum is σ = 649604109024. Its totient is φ = 211113874944.

The previous prime is 427636257161. The next prime is 427636257179. The reversal of 427636257166 is 661752636724.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427636257161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3010555 + ... + 3149398.

It is an arithmetic number, because the mean of its divisors is an integer number (40600256814).

Almost surely, 2^427636257166 is an apocalyptic number.

427636257166 is a deficient number, since it is larger than the sum of its proper divisors (221967851858).

427636257166 is a wasteful number, since it uses less digits than its factorization.

427636257166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160395.

The product of its digits is 15240960, while the sum is 55.

The spelling of 427636257166 in words is "four hundred twenty-seven billion, six hundred thirty-six million, two hundred fifty-seven thousand, one hundred sixty-six".