120020603646 has 8 divisors (see below), whose sum is σ = 240041207304. Its totient is φ = 40006867880.

The previous prime is 120020603597. The next prime is 120020603657. The reversal of 120020603646 is 646306020021.

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

120020603646 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10001716965 + ... + 10001716976.

It is an arithmetic number, because the mean of its divisors is an integer number (30005150913).

Almost surely, 2^120020603646 is an apocalyptic number.

120020603646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120020603646 is a wasteful number, since it uses less digits than its factorization.

120020603646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20003433946.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 120020603646 its reverse (646306020021), we get a palindrome (766326623667).

The spelling of 120020603646 in words is "one hundred twenty billion, twenty million, six hundred three thousand, six hundred forty-six".