123663299659 has 8 divisors (see below), whose sum is σ = 125244887040. Its totient is φ = 122083895016.

The previous prime is 123663299651. The next prime is 123663299707. The reversal of 123663299659 is 956992366321.

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 123663299659 - 2³ = 123663299651 is a prime.

It is a super-2 number, since 2×123663299659² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123663299597 and 123663299606.

It is not an unprimeable number, because it can be changed into a prime (123663299651) 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, 431499 + ... + 658420.

It is an arithmetic number, because the mean of its divisors is an integer number (15655610880).

Almost surely, 2^123663299659 is an apocalyptic number.

123663299659 is a deficient number, since it is larger than the sum of its proper divisors (1581587381).

123663299659 is a wasteful number, since it uses less digits than its factorization.

123663299659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091369.

The product of its digits is 28343520, while the sum is 61.

The spelling of 123663299659 in words is "one hundred twenty-three billion, six hundred sixty-three million, two hundred ninety-nine thousand, six hundred fifty-nine".