660468701 has 4 divisors (see below), whose sum is σ = 663821532. Its totient is φ = 657115872.

The previous prime is 660468661. The next prime is 660468727. The reversal of 660468701 is 107864066.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 390655225 + 269813476 = 19765^2 + 16426^2 .

It is a cyclic number.

It is not a de Polignac number, because 660468701 - 2⁶ = 660468637 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 1676120 + ... + 1676513.

It is an arithmetic number, because the mean of its divisors is an integer number (165955383).

Almost surely, 2^660468701 is an apocalyptic number.

It is an amenable number.

660468701 is a deficient number, since it is larger than the sum of its proper divisors (3352831).

660468701 is a wasteful number, since it uses less digits than its factorization.

660468701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3352830.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 660468701 is about 25699.5856192274. The cubic root of 660468701 is about 870.8648206701.

It can be divided in two parts, 66046 and 8701, that added together give a palindrome (74747).

The spelling of 660468701 in words is "six hundred sixty million, four hundred sixty-eight thousand, seven hundred one".