6406575506 has 8 divisors (see below), whose sum is σ = 9919858944. Its totient is φ = 3099955860.

The previous prime is 6406575491. The next prime is 6406575509. The reversal of 6406575506 is 6055756046.

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

It is not an unprimeable number, because it can be changed into a prime (6406575509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51665870 + ... + 51665993.

It is an arithmetic number, because the mean of its divisors is an integer number (1239982368).

Almost surely, 2^6406575506 is an apocalyptic number.

6406575506 is a deficient number, since it is larger than the sum of its proper divisors (3513283438).

6406575506 is a wasteful number, since it uses less digits than its factorization.

6406575506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103331896.

The product of its (nonzero) digits is 756000, while the sum is 44.

The square root of 6406575506 is about 80041.0863619429. The cubic root of 6406575506 is about 1857.2711657076.

The spelling of 6406575506 in words is "six billion, four hundred six million, five hundred seventy-five thousand, five hundred six".