660969741 has 8 divisors (see below), whose sum is σ = 933133824. Its totient is φ = 414726080.

The previous prime is 660969721. The next prime is 660969761. The reversal of 660969741 is 147969066.

660969741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (660969721) and next prime (660969761).

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

It is a cyclic number.

It is not a de Polignac number, because 660969741 - 2¹¹ = 660967693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660969721) 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, 6480045 + ... + 6480146.

It is an arithmetic number, because the mean of its divisors is an integer number (116641728).

Almost surely, 2^660969741 is an apocalyptic number.

It is an amenable number.

660969741 is a deficient number, since it is larger than the sum of its proper divisors (272164083).

660969741 is a wasteful number, since it uses less digits than its factorization.

660969741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12960211.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 660969741 is about 25709.3317882826. The cubic root of 660969741 is about 871.0849814026.

The spelling of 660969741 in words is "six hundred sixty million, nine hundred sixty-nine thousand, seven hundred forty-one".