120185300656 has 40 divisors (see below), whose sum is σ = 252290508624. Its totient is φ = 55242485760.

The previous prime is 120185300581. The next prime is 120185300657. The reversal of 120185300656 is 656003581021.

It is a super-2 number, since 2×120185300656² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120185300657) 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, 5126185 + ... + 5149576.

Almost surely, 2^120185300656 is an apocalyptic number.

120185300656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

120185300656 is an abundant number, since it is smaller than the sum of its proper divisors (132105207968).

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

120185300656 is a wasteful number, since it uses less digits than its factorization.

120185300656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10275829 (or 10275823 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

Adding to 120185300656 its reverse (656003581021), we get a palindrome (776188881677).

The spelling of 120185300656 in words is "one hundred twenty billion, one hundred eighty-five million, three hundred thousand, six hundred fifty-six".