409258197966 has 32 divisors (see below), whose sum is σ = 855124711200. Its totient is φ = 130411164800.

The previous prime is 409258197919. The next prime is 409258197967. The reversal of 409258197966 is 669791852904.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 409258197897 and 409258197906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409258197967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11626281 + ... + 11661428.

It is an arithmetic number, because the mean of its divisors is an integer number (26722647225).

Almost surely, 2^409258197966 is an apocalyptic number.

409258197966 is an abundant number, since it is smaller than the sum of its proper divisors (445866513234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

409258197966 is a wasteful number, since it uses less digits than its factorization.

409258197966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23287844.

The product of its (nonzero) digits is 58786560, while the sum is 66.

The spelling of 409258197966 in words is "four hundred nine billion, two hundred fifty-eight million, one hundred ninety-seven thousand, nine hundred sixty-six".