406477231966 has 8 divisors (see below), whose sum is σ = 656617067064. Its totient is φ = 187604876280.

The previous prime is 406477231957. The next prime is 406477231997. The reversal of 406477231966 is 669132774604.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7816869820 + ... + 7816869871.

It is an arithmetic number, because the mean of its divisors is an integer number (82077133383).

Almost surely, 2^406477231966 is an apocalyptic number.

406477231966 is a deficient number, since it is larger than the sum of its proper divisors (250139835098).

406477231966 is a wasteful number, since it uses less digits than its factorization.

406477231966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15633739706.

The product of its (nonzero) digits is 9144576, while the sum is 55.

The spelling of 406477231966 in words is "four hundred six billion, four hundred seventy-seven million, two hundred thirty-one thousand, nine hundred sixty-six".