120015206145 has 16 divisors (see below), whose sum is σ = 213360366720. Its totient is φ = 64008109872.

The previous prime is 120015206141. The next prime is 120015206149. The reversal of 120015206145 is 541602510021.

120015206145 is a `hidden beast` number, since 1 + 20 + 0 + 1 + 5 + 20 + 614 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (120015206141) and next prime (120015206149).

It is not a de Polignac number, because 120015206145 - 2² = 120015206141 is a prime.

It is a super-2 number, since 2×120015206145² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120015206141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444500629 + ... + 444500898.

It is an arithmetic number, because the mean of its divisors is an integer number (13335022920).

Almost surely, 2^120015206145 is an apocalyptic number.

120015206145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120015206145 is a deficient number, since it is larger than the sum of its proper divisors (93345160575).

120015206145 is an equidigital number, since it uses as much as digits as its factorization.

120015206145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889001541 (or 889001535 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 120015206145 its reverse (541602510021), we get a palindrome (661617716166).

The spelling of 120015206145 in words is "one hundred twenty billion, fifteen million, two hundred six thousand, one hundred forty-five".