669608113843 has 8 divisors (see below), whose sum is σ = 709014247920. Its totient is φ = 630203915520.

The previous prime is 669608113817. The next prime is 669608113849. The reversal of 669608113843 is 348311806966.

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

It is not a de Polignac number, because 669608113843 - 2⁹ = 669608113331 is a prime.

It is a super-2 number, since 2×669608113843² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (669608113849) 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, 261028 + ... + 1186318.

It is an arithmetic number, because the mean of its divisors is an integer number (88626780990).

Almost surely, 2^669608113843 is an apocalyptic number.

669608113843 is a deficient number, since it is larger than the sum of its proper divisors (39406134077).

669608113843 is a wasteful number, since it uses less digits than its factorization.

669608113843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967877.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 669608113843 in words is "six hundred sixty-nine billion, six hundred eight million, one hundred thirteen thousand, eight hundred forty-three".