406065666142 has 4 divisors (see below), whose sum is σ = 609098499216. Its totient is φ = 203032833070.

The previous prime is 406065666091. The next prime is 406065666151. The reversal of 406065666142 is 241666560604.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 406065666092 and 406065666101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101516416534 + ... + 101516416537.

It is an arithmetic number, because the mean of its divisors is an integer number (152274624804).

Almost surely, 2^406065666142 is an apocalyptic number.

406065666142 is a deficient number, since it is larger than the sum of its proper divisors (203032833074).

406065666142 is a wasteful number, since it uses less digits than its factorization.

406065666142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203032833073.

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 406065666142 in words is "four hundred six billion, sixty-five million, six hundred sixty-six thousand, one hundred forty-two".