668200752 has 50 divisors (see below), whose sum is σ = 1933970588. Its totient is φ = 222733152.

The previous prime is 668200751. The next prime is 668200789. The reversal of 668200752 is 257002866.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (668200751) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 256498 + ... + 259089.

Almost surely, 2^668200752 is an apocalyptic number.

It is an amenable number.

668200752 is an abundant number, since it is smaller than the sum of its proper divisors (1265769836).

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

668200752 is a wasteful number, since it uses less digits than its factorization.

668200752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515607 (or 515592 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 668200752 is about 25849.5793389370. The cubic root of 668200752 is about 874.2500249066.

The spelling of 668200752 in words is "six hundred sixty-eight million, two hundred thousand, seven hundred fifty-two".