120520055145529 has 16 divisors (see below), whose sum is σ = 133345576994112. Its totient is φ = 108204469748928.

The previous prime is 120520055145481. The next prime is 120520055145593. The reversal of 120520055145529 is 925541550025021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120520055145529 - 2²⁷ = 120519920927801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120520055125529) 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, 42698899 + ... + 45433864.

It is an arithmetic number, because the mean of its divisors is an integer number (8334098562132).

Almost surely, 2^{120520055145529} is an apocalyptic number.

It is an amenable number.

120520055145529 is a deficient number, since it is larger than the sum of its proper divisors (12825521848583).

120520055145529 is a wasteful number, since it uses less digits than its factorization.

120520055145529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88135656.

The product of its (nonzero) digits is 900000, while the sum is 46.

The spelling of 120520055145529 in words is "one hundred twenty trillion, five hundred twenty billion, fifty-five million, one hundred forty-five thousand, five hundred twenty-nine".