660961197683 has 8 divisors (see below), whose sum is σ = 695973925200. Its totient is φ = 625970999808.

The previous prime is 660961197647. The next prime is 660961197697. The reversal of 660961197683 is 386791169066.

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 660961197683 - 2⁶ = 660961197619 is a prime.

It is a super-3 number, since 3×660961197683³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660961197643) 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, 5572166 + ... + 5689547.

It is an arithmetic number, because the mean of its divisors is an integer number (86996740650).

Almost surely, 2^660961197683 is an apocalyptic number.

660961197683 is a deficient number, since it is larger than the sum of its proper divisors (35012727517).

660961197683 is a wasteful number, since it uses less digits than its factorization.

660961197683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11264821.

The product of its (nonzero) digits is 17635968, while the sum is 62.

The spelling of 660961197683 in words is "six hundred sixty billion, nine hundred sixty-one million, one hundred ninety-seven thousand, six hundred eighty-three".