6406405567 has 8 divisors (see below), whose sum is σ = 6506376800. Its totient is φ = 6307183584.

The previous prime is 6406405553. The next prime is 6406405591. The reversal of 6406405567 is 7655046046.

It is a happy number.

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 6406405567 - 2¹¹ = 6406403519 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 (6406405507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170067 + ... + 204292.

It is an arithmetic number, because the mean of its divisors is an integer number (813297100).

Almost surely, 2^6406405567 is an apocalyptic number.

6406405567 is a deficient number, since it is larger than the sum of its proper divisors (99971233).

6406405567 is a wasteful number, since it uses less digits than its factorization.

6406405567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374625.

The product of its (nonzero) digits is 604800, while the sum is 43.

The square root of 6406405567 is about 80040.0247813555. The cubic root of 6406405567 is about 1857.2547437468.

The spelling of 6406405567 in words is "six billion, four hundred six million, four hundred five thousand, five hundred sixty-seven".