120646643623 has 8 divisors (see below), whose sum is σ = 131819216256. Its totient is φ = 109508187000.

The previous prime is 120646643573. The next prime is 120646643633. The reversal of 120646643623 is 326346646021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120646643623 is a prime.

It is a super-2 number, since 2×120646643623² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120646643623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120646643633) 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, 8521603 + ... + 8535748.

It is an arithmetic number, because the mean of its divisors is an integer number (16477402032).

Almost surely, 2^120646643623 is an apocalyptic number.

120646643623 is a deficient number, since it is larger than the sum of its proper divisors (11172572633).

120646643623 is a wasteful number, since it uses less digits than its factorization.

120646643623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17058005.

The product of its (nonzero) digits is 746496, while the sum is 43.

The spelling of 120646643623 in words is "one hundred twenty billion, six hundred forty-six million, six hundred forty-three thousand, six hundred twenty-three".