664551134 has 8 divisors (see below), whose sum is σ = 1073505720. Its totient is φ = 306715896.

The previous prime is 664551133. The next prime is 664551137. The reversal of 664551134 is 431155466.

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

It is a junction number, because it is equal to n+sod(n) for n = 664551094 and 664551103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664551133) 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, 12779804 + ... + 12779855.

It is an arithmetic number, because the mean of its divisors is an integer number (134188215).

Almost surely, 2^664551134 is an apocalyptic number.

664551134 is a deficient number, since it is larger than the sum of its proper divisors (408954586).

664551134 is a wasteful number, since it uses less digits than its factorization.

664551134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25559674.

The product of its digits is 43200, while the sum is 35.

The square root of 664551134 is about 25778.8893088899. The cubic root of 664551134 is about 872.6554415818.

The spelling of 664551134 in words is "six hundred sixty-four million, five hundred fifty-one thousand, one hundred thirty-four".