406400611606 has 32 divisors (see below), whose sum is σ = 700455340800. Its totient is φ = 174896261280.

The previous prime is 406400611553. The next prime is 406400611633. The reversal of 406400611606 is 606116004604.

It is a super-2 number, since 2×406400611606² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372855 + ... + 975613.

It is an arithmetic number, because the mean of its divisors is an integer number (21889229400).

Almost surely, 2^406400611606 is an apocalyptic number.

406400611606 is a deficient number, since it is larger than the sum of its proper divisors (294054729194).

406400611606 is a wasteful number, since it uses less digits than its factorization.

406400611606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604404.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 406400611606 in words is "four hundred six billion, four hundred million, six hundred eleven thousand, six hundred six".