426540426610166 has 12 divisors (see below), whose sum is σ = 703262934783276. Its totient is φ = 193882012095420.

The previous prime is 426540426610147. The next prime is 426540426610171. The reversal of 426540426610166 is 661016624045624.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 881281872920 + ... + 881281873403.

It is an arithmetic number, because the mean of its divisors is an integer number (58605244565273).

Almost surely, 2^{426540426610166} is an apocalyptic number.

426540426610166 is a deficient number, since it is larger than the sum of its proper divisors (276722508173110).

426540426610166 is a wasteful number, since it uses less digits than its factorization.

426540426610166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762563746347 (or 1762563746336 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 53.

The spelling of 426540426610166 in words is "four hundred twenty-six trillion, five hundred forty billion, four hundred twenty-six million, six hundred ten thousand, one hundred sixty-six".