668514500 has 48 divisors (see below), whose sum is σ = 1463978880. Its totient is φ = 266684000.

The previous prime is 668514499. The next prime is 668514503. The reversal of 668514500 is 5415866.

It is a happy number.

668514500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (668514503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207905 + ... + 211095.

It is an arithmetic number, because the mean of its divisors is an integer number (30499560).

Almost surely, 2^668514500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 668514500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731989440).

668514500 is an abundant number, since it is smaller than the sum of its proper divisors (795464380).

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

668514500 is a wasteful number, since it uses less digits than its factorization.

668514500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629 (or 3617 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 668514500 is about 25855.6473521743. The cubic root of 668514500 is about 874.3868357260.

The spelling of 668514500 in words is "six hundred sixty-eight million, five hundred fourteen thousand, five hundred".