120645536028 has 12 divisors (see below), whose sum is σ = 281506250760. Its totient is φ = 40215178672.

The previous prime is 120645536023. The next prime is 120645536041. The reversal of 120645536028 is 820635546021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120645536023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5026897323 + ... + 5026897346.

It is an arithmetic number, because the mean of its divisors is an integer number (23458854230).

Almost surely, 2^120645536028 is an apocalyptic number.

It is an amenable number.

120645536028 is an abundant number, since it is smaller than the sum of its proper divisors (160860714732).

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

120645536028 is a wasteful number, since it uses less digits than its factorization.

120645536028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10053794676 (or 10053794674 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 120645536028 in words is "one hundred twenty billion, six hundred forty-five million, five hundred thirty-six thousand, twenty-eight".