664391300414 has 16 divisors (see below), whose sum is σ = 1000053267840. Its totient is φ = 331041490200.

The previous prime is 664391300411. The next prime is 664391300431. The reversal of 664391300414 is 414003193466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664391300411) 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, 722957 + ... + 1360679.

It is an arithmetic number, because the mean of its divisors is an integer number (62503329240).

Almost surely, 2^664391300414 is an apocalyptic number.

664391300414 is a deficient number, since it is larger than the sum of its proper divisors (335661967426).

664391300414 is a wasteful number, since it uses less digits than its factorization.

664391300414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639535.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 664391300414 in words is "six hundred sixty-four billion, three hundred ninety-one million, three hundred thousand, four hundred fourteen".