406660820597 has 16 divisors (see below), whose sum is σ = 449826918912. Its totient is φ = 365930549760.

The previous prime is 406660820551. The next prime is 406660820617. The reversal of 406660820597 is 795028066604.

It is a cyclic number.

It is not a de Polignac number, because 406660820597 - 2²⁸ = 406392385141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406660120597) 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, 4604768 + ... + 4692249.

It is an arithmetic number, because the mean of its divisors is an integer number (28114182432).

Almost surely, 2^406660820597 is an apocalyptic number.

It is an amenable number.

406660820597 is a deficient number, since it is larger than the sum of its proper divisors (43166098315).

406660820597 is a wasteful number, since it uses less digits than its factorization.

406660820597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9297148.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 406660820597 in words is "four hundred six billion, six hundred sixty million, eight hundred twenty thousand, five hundred ninety-seven".