660468741 has 8 divisors (see below), whose sum is σ = 892688640. Its totient is φ = 434280672.

The previous prime is 660468727. The next prime is 660468761. The reversal of 660468741 is 147864066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 660468741 - 2¹⁵ = 660435973 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 660468693 and 660468702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660468761) 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, 1507701 + ... + 1508138.

It is an arithmetic number, because the mean of its divisors is an integer number (111586080).

Almost surely, 2^660468741 is an apocalyptic number.

It is an amenable number.

660468741 is a deficient number, since it is larger than the sum of its proper divisors (232219899).

660468741 is a wasteful number, since it uses less digits than its factorization.

660468741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3015915.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 660468741 is about 25699.5863974501. The cubic root of 660468741 is about 870.8648382508.

The spelling of 660468741 in words is "six hundred sixty million, four hundred sixty-eight thousand, seven hundred forty-one".