664014000 has 160 divisors (see below), whose sum is σ = 2305727424. Its totient is φ = 163430400.

The previous prime is 664013989. The next prime is 664014011. The reversal of 664014000 is 410466.

It is an interprime number because it is at equal distance from previous prime (664013989) and next prime (664014011).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73744 + ... + 82256.

Almost surely, 2^664014000 is an apocalyptic number.

664014000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 664014000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1152863712).

664014000 is an abundant number, since it is smaller than the sum of its proper divisors (1641713424).

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

664014000 is a wasteful number, since it uses less digits than its factorization.

664014000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8552 (or 8536 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 664014000 is about 25768.4691047024. The cubic root of 664014000 is about 872.4202656725.

Adding to 664014000 its reverse (410466), we get a palindrome (664424466).

The spelling of 664014000 in words is "six hundred sixty-four million, fourteen thousand".