406035231661 has 8 divisors (see below), whose sum is σ = 412929597600. Its totient is φ = 399141279600.

The previous prime is 406035231551. The next prime is 406035231703. The reversal of 406035231661 is 166132530604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 406035231661 - 2⁹ = 406035231149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 406035231661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406035231461) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2374795 + ... + 2540023.

It is an arithmetic number, because the mean of its divisors is an integer number (51616199700).

Almost surely, 2^406035231661 is an apocalyptic number.

It is an amenable number.

406035231661 is a deficient number, since it is larger than the sum of its proper divisors (6894365939).

406035231661 is a wasteful number, since it uses less digits than its factorization.

406035231661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206939.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 406035231661 in words is "four hundred six billion, thirty-five million, two hundred thirty-one thousand, six hundred sixty-one".