668000749998 has 16 divisors (see below), whose sum is σ = 1336010582736. Its totient is φ = 222665402880.

The previous prime is 668000749991. The next prime is 668000750023. The reversal of 668000749998 is 899947000866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668000749991) 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, 920728 + ... + 1477748.

It is an arithmetic number, because the mean of its divisors is an integer number (83500661421).

Almost surely, 2^668000749998 is an apocalyptic number.

668000749998 is an abundant number, since it is smaller than the sum of its proper divisors (668009832738).

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

668000749998 is a wasteful number, since it uses less digits than its factorization.

668000749998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756899.

The product of its (nonzero) digits is 47029248, while the sum is 66.

The spelling of 668000749998 in words is "six hundred sixty-eight billion, seven hundred forty-nine thousand, nine hundred ninety-eight".