120011165613 has 24 divisors (see below), whose sum is σ = 178964887296. Its totient is φ = 77416387200.

The previous prime is 120011165611. The next prime is 120011165621. The reversal of 120011165613 is 316561110021.

120011165613 is a `hidden beast` number, since 1 + 2 + 0 + 0 + 1 + 1 + 1 + 656 + 1 + 3 = 666.

It is not a de Polignac number, because 120011165613 - 2¹ = 120011165611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120011165611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2505973 + ... + 2553413.

It is an arithmetic number, because the mean of its divisors is an integer number (7456870304).

Almost surely, 2^120011165613 is an apocalyptic number.

It is an amenable number.

120011165613 is a deficient number, since it is larger than the sum of its proper divisors (58953721683).

120011165613 is a wasteful number, since it uses less digits than its factorization.

120011165613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56545 (or 56542 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

Adding to 120011165613 its reverse (316561110021), we get a palindrome (436572275634).

The spelling of 120011165613 in words is "one hundred twenty billion, eleven million, one hundred sixty-five thousand, six hundred thirteen".