664432104126 has 32 divisors (see below), whose sum is σ = 1525512296448. Its totient is φ = 188986451040.

The previous prime is 664432104109. The next prime is 664432104139. The reversal of 664432104126 is 621401234466.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35461065 + ... + 35479796.

It is an arithmetic number, because the mean of its divisors is an integer number (47672259264).

Almost surely, 2^664432104126 is an apocalyptic number.

664432104126 is an abundant number, since it is smaller than the sum of its proper divisors (861080192322).

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

664432104126 is a wasteful number, since it uses less digits than its factorization.

664432104126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70941096.

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 664432104126 in words is "six hundred sixty-four billion, four hundred thirty-two million, one hundred four thousand, one hundred twenty-six".