664014126 has 16 divisors (see below), whose sum is σ = 1332968400. Its totient is φ = 220514688.

The previous prime is 664014121. The next prime is 664014133. The reversal of 664014126 is 621410466.

It is a junction number, because it is equal to n+sod(n) for n = 664014093 and 664014102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664014121) 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, 204091 + ... + 207318.

It is an arithmetic number, because the mean of its divisors is an integer number (83310525).

Almost surely, 2^664014126 is an apocalyptic number.

664014126 is an abundant number, since it is smaller than the sum of its proper divisors (668954274).

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

664014126 is a wasteful number, since it uses less digits than its factorization.

664014126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411683.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 664014126 is about 25768.4715495506. The cubic root of 664014126 is about 872.4203208546.

The spelling of 664014126 in words is "six hundred sixty-four million, fourteen thousand, one hundred twenty-six".